Hydor Koralia Circulation Pump/Powerhead UL

0 of 0 people found the following review helpful:

Great

Great by TBRAUN

Experience Level: Intermediate

Posted on 11/24/2009 from Rockaway, NJ

Comments: Great pump, very strong flow. Easy to install and easy to aim. Combination magnet/suction cup provides a strong hold. Comes with a detachable cone to concentrate the flow. Only wish I had seen the 12V wave setups first. Yes, I would recommend this product to my friends.

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Great

great pumps by JESSE SNIDER

Experience Level: Beginner

Posted on 11/22/2009

Comments: They work great. Very quiet, Small and easy to hide. Yes, I would recommend this product to my friends.

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0 of 0 people found the following review helpful:

Excellent!

excellent! by Jay

Experience Level: Beginner

Posted on 11/18/2009 from YORKVILLE, NY UNITED STATES

Comments: awesome circulation in my 30 gal Yes, I would recommend this product to my friends.

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1 of 1 people found the following review helpful:

Excellent!

Swaying In The Breeze by Loer Velocity

Experience Level: Beginner

Posted on 11/13/2009 from YONKERS, NY UNITED STATES

Comments: I'm very satisfied with my koralia purchase. From the box to the tank was an easy transition.. No intricate set-up. Basically, position, plug and enjoy. My corals seem even more pleased than me!! Yes, I would recommend this product to my friends.

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Great

Hydor Koralia 2 by WAYNE

Experience Level: Intermediate

Posted on 11/11/2009 from UNITED STATES

Comments: This powerhead was purchased to replace a Tunze 6025. So far, it seems an adequate replacement but, I believe the Tunze produced a stronger flow with a more compact design. While I prefer the Tunze 6025 over this model, it is still a good choice for a lot less money. Yes, I would recommend this product to my friends.

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0 of 0 people found the following review helpful:

Excellent!

Hydor Koralia 4 by CANALS

Experience Level: Intermediate

Posted on 11/3/2009 from PORT ORANGE, FL UNITED STATES

Comments: Great pump, especially for the price. Yes, I would recommend this product to my friends.

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0 of 0 people found the following review helpful:

Great

Great product, may need more by ReefFiend

Experience Level: Intermediate

Posted on 10/19/2009 from INDIANAPOLIS, IN UNITED STATES

Comments: I always found the reviews with tank sizes vs. which powerhead to be the most useful, so I wanted to add one. I have a 2 in my 28 gallon bowfront and it may not be enough. I haven't moved my corals/anemone over yet, but it just feels a little weak in that size tank. I will be adding a small Rio from another tank that I am breaking down. That being said - it is a great, solid product. Yes, I would recommend this product to my friends.

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0 of 0 people found the following review helpful:

Excellent!

Good product. by JOHN THAI

Experience Level: Intermediate

Posted on 10/17/2009 from MERCED, CA UNITED STATES

Comments: Can't beat the $$$ and performance. Puts out a pretty wideflow. I use Koralias in both of my reef tanks. Solid product. Yes, I would recommend this product to my friends.

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1 of 1 people found the following review helpful:

Excellent!

Good Flow for a small pump! by rmulet

Experience Level: Intermediate

Posted on 10/12/2009 from BROOKLYN, NY UNITED STATES

Comments: I have a 15 gallon reef tank and I purchased two of these to replace a Maxi-Jet 600 that was pretty old. I love the way the corals now sway back and forth without using a wavemaker! I would get the larger size if you have anything larger than a 20 gallon and/or SPS corals. For my softies they are great though! I am really happy with my purchase. Yes, I would recommend this product to my friends.

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0 of 0 people found the following review helpful:

Excellent!

Great by STEVEN MARCUS

Experience Level: Expert

Posted on 10/8/2009 from PITTSBURGH, PA UNITED STATES

Comments: Moves a lot of water without using a lot of power. Its easy to adjust the flow of water b/c the head pivots on the magnetic base. Yes, I would recommend this product to my friends.

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0 of 0 people found the following review helpful:

Excellent!

Excellent product by TYLER MCKITTERICK

Experience Level: Intermediate

Posted on 10/7/2009 from LINCOLN, NE UNITED STATES

Comments: Never had experience with these before. Provides good flow. I purchased a nano and a "1" for my 20 long tank. Kind of wish I'd have gone with two "1"s. They produce much more flow. I should have listened to what others said, it's true. Go one higher than you think. They push a lot of water, but it's pushed over a wide area, so it's not overpowering. All-in-all, great product though Yes, I would recommend this product to my friends.

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0 of 0 people found the following review helpful:

Great

Great Pump by DRAKE DEMING

Experience Level: Intermediate

Posted on 9/28/2009 from WOODBINE, MD UNITED STATES

Comments: Pump works great and is super easy to install. I use this in a 55 gallon cichlid tank and it stirs up the water nicely in half the tank, I should have gone one size bigger but all in all well worth the money! Yes, I would recommend this product to my friends.

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0 of 0 people found the following review helpful:

Excellent!

Nice by ALFRED PITTS

Experience Level: Intermediate

Posted on 9/21/2009 from ALBANY, GA UNITED STATES

Comments: Works wonderfully. The only thing that was kind of interesting is that I had to assemble it. It was not put together but it was not difficult and it is making everything sway nicely. Yes, I would recommend this product to my friends.

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1 of 1 people found the following review helpful:

Excellent!

Off a submarine? by MATTHEW HILLS

Experience Level: Intermediate

Posted on 9/19/2009 from APO, AP UNITED STATES

Comments: This circulation pump is very powerful. In hindsight I would most likely have purchased the Koralia 2 instead of the 3; it just seems a little bit too much for my 80 gal. However, it is very easy to adjust, yet doesn't move on its own, it is very quite (assuming you put the end nozzle on securely), and is powerful enough to keep food from getting stuck in the inlet slots. All in all its great, just a little more powerful than I anticipated. Yes, I would recommend this product to my friends.

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0 of 0 people found the following review helpful:

Great

Hydor Koralia Circulation Pump by Tai

Experience Level: Intermediate

Posted on 9/16/2009 from SILVER SPRING, MD UNITED STATE

Comments: Nice pump. Moves a lot of water in my 200 gal. reef tank. Has helped a lot with a red algae problem. Will order another soon. Yes, I would recommend this product to my friends.

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0 of 0 people found the following review helpful:

Excellent!

Hydor Koralia 3 by KK

Experience Level: Beginner

Posted on 9/14/2009 from EDGEWOOD, NM UNITED STATES

Comments: Great circulation pump! Plenty of water movement in my 40G tank. Absolutely no noise. Works great! Yes, I would recommend this product to my friends.

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2 of 2 people found the following review helpful:

Excellent!

Hydor Koralia Nano - 29 G Tank by Shane A. Smith

Experience Level: Intermediate

Posted on 9/10/2009 from CAMERON PARK, CA UNITED STATES

Comments: I purchased the Nano as I had read somewhere that the Hydor 1 was about 5 inches long (which is not correct BTW - it is smaller than that). I figured that that size would be too intrusive in my 29 gallon freshwater planted tank and settled on the Nano instead. I had read in previous reviews here that the Nano barely moves any water at all but I figured it would suffice for the one side of my aquarium that wasn't getting good flow. One half of the tank gets good circulation from the HOB Filter so my intention was to install this on the other half where it was nearly stagnant in the hopes that this would help combat any problems with algae. Well, this little sucker is more powerful than anticipated!! It sucked the leaves of my large Amazon Sword up to the sides of the pump. So, I had to attach the Nano to the same side of the tank as the HOB Filter (the HOB is on the back, left-hand side of the tank and the Nano is on the left SIDE of the tank) and bounce the stream off the front of the aquarium to the back right-hand corner that lacked circulation. I watched a detached root that was laying on the substrate get stirred up off the substrate and then circulate repeatedly (in an elliptical circular pattern from upper left to lower right) throughout the whole tank for about 5 minutes before it finally got caught on the root of one of the plants in the back right-hand corner. It provided just enough flow for my needs and is more powerful than you would expect. Just for the record the HK 1 is not much bigger than the Nano - I saw it in person at a local retail fish store yesterday. If in doubt, go with the 1 rather than the Nano but I am very satisfied with the Nano, especially since it survived the "wife test" (she STILL hasn't noticed that it's in there - even after 2 weeks!!). Yes, I would recommend this product to my friends.

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0 of 0 people found the following review helpful:

Excellent!

Sweet by Raven

Experience Level: Intermediate

Posted on 9/8/2009 from BAKERSFIELD, CA UNITED STATES

Comments: Puts out lots of nice easy water movement.It adjusts to different directions with no effort and stays on tank wall with a death grip.The price was so much better than the other pumps I was somewhat worried (you get what you pay for)not worried now its a great pump at a sweet price. Yes, I would recommend this product to my friends.

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0 of 0 people found the following review helpful:

Average

weak by MICHAEL HAINES

Experience Level: Intermediate

Posted on 9/3/2009 from BOYNTON BEACH, FL UNITED STATE

Comments: i bought the 2 and it was not enough for my 75 gallon had to upgrade to the 4 hopefully it does the trick Yes, I would recommend this product to my friends.

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0 of 0 people found the following review helpful:

Excellent!

Great Product by BR Aqua

Experience Level: Intermediate

Posted on 8/30/2009 from BURR RIDGE, IL UNITED STATES

Comments: Works well. Quiet and produces a strong current. Highly recommended! Yes, I would recommend this product to my friends.

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0 of 0 people found the following review helpful:

Great

good product by SUSAN H

Experience Level: Intermediate

Posted on 8/30/2009 from QUEEN CREEK, AZ UNITED STATES

Comments: good water flow for a reef tank if you do not want to invest in a more expensive wave machine...I have three in my 90 gal tank and they do the job Yes, I would recommend this product to my friends.

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0 of 0 people found the following review helpful:

Excellent!

Gets the job done! by RICHARD KOWALCZYK

Experience Level: Intermediate

Posted on 8/22/2009 from BOYNTON BEACH, FL UNITED STATE

Comments: I am very pleased with this product. It was very easy to set up. It stays in place very well. It puts out a nice flow that I can direct in different areas if I wish. Yes, I would recommend this product to my friends.

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0 of 0 people found the following review helpful:

Great

hydor koralia by CHAD MORROW

Experience Level: Beginner

Posted on 8/20/2009 from HORN LAKE, MS UNITED STATES

Comments: ive had the pump up and running about a week now and it seems to be working good. has pretty good circulation for my 30 gallon tank but ill prob have to get another one the more i add to the tank. its very easy to install and convenient being that it has magnets to hold it in the aquarium. i would definitely buy another one. Yes, I would recommend this product to my friends.

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0 of 0 people found the following review helpful:

Excellent!

Perfect by RON NOLAN

Experience Level: Expert

Posted on 8/15/2009 from DELRAY BEACH, FL UNITED STATES

Comments: Awesome little pump creates exactly the kind of currents you need for a reef. Should have bought one long ago. Yes, I would recommend this product to my friends.

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0 of 0 people found the following review helpful:

Excellent!

Great circulation by Kristen

Experience Level: Beginner

Posted on 8/14/2009 from GALVESTON, TX UNITED STATES

Comments: The Koralia 2 added a great amount of circulation to my 46 bowfront tank. Would definately recommend and buy again. Yes, I would recommend this product to my friends.

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0 of 0 people found the following review helpful:

Excellent!

Excellent by APRATIM SARKAR

Experience Level: Intermediate

Posted on 8/7/2009 from CHESTNUT HILL, MA UNITED STATE

Comments: Works like a charm Yes, I would recommend this product to my friends.

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0 of 0 people found the following review helpful:

Great

Great product by JON HACKER

Experience Level: Beginner

Posted on 8/6/2009 from CHESTERFIELD, MO UNITED STATES

Comments: I started using this powerhead since monday and it truly has made all the difference. I may even buy another. I will definitely tell others to use this product and Marine Depot, and I already have. Yes, I would recommend this product to my friends.

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1 of 1 people found the following review helpful:

Great

Nano Hydro Koralia by SCOTT

Experience Level: Intermediate

Posted on 8/5/2009 from PAGOSA SPRINGS, CO UNITED STAT

Comments: I have the Nano in my 12 gallon reef. It does just what people say, moves a lot of water gently, in a wide area. The magnet mount is great. I may order another one just to get some current going the other direction in my tank. Yes, I would recommend this product to my friends.

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0 of 0 people found the following review helpful:

Excellent!

Great little powerhead by RICH

Experience Level: Beginner

Posted on 8/5/2009 from Auburn, CA UNITED STATES

Comments: I got the nano and this little guy is so quite you hardy know it's on. I probably should have got one size larger, but it's just for a little 35gal in my daughter's room so I was't looking for a big tidal flow. I'll be getting a bigger one next time though. Yes, I would recommend this product to my friends.

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1 of 1 people found the following review helpful:

Excellent!

koralia nano circulation pump by TOM FITZGERALD

Experience Level: Intermediate

Posted on 8/3/2009 from NEWINGTON, CT UNITED STATES

Comments: I am currently using the koralia nano as an additional pump in my 12gal nanocube. I have set it low in the tank using the magnets to provide circulation "deeper" in the tank. It has improved water movement and lessens a stagnant bottom. For the money it is an outstanding circulation pump that I would highly recommend in nanotanks or larger. The pump also comes with a very good factory warranty should the pump fail. Yes, I would recommend this product to my friends.

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0 of 0 people found the following review helpful:

Excellent!

Excellent Circulation! by AQUAMAN

Experience Level: Intermediate

Posted on 8/3/2009 from BILOXI, MS UNITED STATES

Comments: Pumps circulate a very smooth current throughout display. Yes, I would recommend this product to my friends.

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0 of 0 people found the following review helpful:

Excellent!

Starter Tank by First Timer

Experience Level: Beginner

Posted on 8/1/2009 from MIAMI, FL UNITED STATES

Comments: First time doing a salt water tank and I used this product in a Current Biocube to increase water movement. Product worked as it should and is working very well. Magnets are very strong and work well in supporting the pump head from anywhere including my plastic separation wall. Good Buy. Yes, I would recommend this product to my friends.

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0 of 0 people found the following review helpful:

Excellent!

Nano Pump by Jay R

Experience Level: Intermediate

Posted on 8/1/2009 from LA CANADA FLINTRIDGE, CA UNITE

Comments: I installed one of these in the upper front corners of my JBJ 28 gal nano and plugged them into my wave timer using a multiplier plug. This sync-ed the pumps with the return jets. They have significantly increased the overall circulation in my tank, and have a small visual impact. They are quiet, and produce a flow that is not overpowering for the nano. Yes, I would recommend this product to my friends.

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0 of 0 people found the following review helpful:

Great

Good product by TAMARA

Experience Level: Beginner

Posted on 8/1/2009 from UNITED STATES

Comments: So far I own the Koralia Nano, 1, and 2. All are quiet and work well. The Koralia 1 had an issue with the flow piece that snaps on. It took about 10 minutes to get that piece to go on. It eventually went on and into the tank it went - works like a charm. Yes, I would recommend this product to my friends.

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0 of 0 people found the following review helpful:

Great

surge filters by DANA

Experience Level: Expert

Posted on 7/31/2009 from HOT SPRINGS, AR UNITED STATES

Comments: Overall the product performs as advertized good flow and easy mounting... had to give it 4/5 because the manifold it comes with wont stay on without glue, and they rattle when starting up other than that they are silent. I will order the 1200 next time for a good Surge. Placement is crucial, took me a few days to get it rite but the suction/magnet made it easy, works like a charm..., they keep the debris suspended well so the overflow can grab it. For the money i guess i can put up with the clatter, it could be the used wavemaker i bought from a friend seems to work fine and the action i get from it is worth it... Great pump! Yes, I would recommend this product to my friends.

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0 of 0 people found the following review helpful:

Great

Hydor Koralia by JASON SATTERFIELD

Experience Level: Intermediate

Posted on 7/22/2009 from WICHITA, KS UNITED STATES

Comments: Very good power head, glad that I got it. I will replace all of my power heads with these. Yes, I would recommend this product to my friends.

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0 of 0 people found the following review helpful:

Great

Good buy by J. HIGHT

Experience Level: Intermediate

Posted on 7/21/2009 from LA, CA UNITED STATES

Comments: Works great - provides additional circulation for my Nanocube 24. Easy to install and reasonably quiet. Yes, I would recommend this product to my friends.

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0 of 0 people found the following review helpful:

Average

Nano pump by MICHAEL LANPHIER

Experience Level: Expert

Posted on 7/19/2009 from CARY, NC UNITED STATES

Comments: The nano pump is a good pump. I have 6 tanks and it's only good for my smallest...a 4g cube in this case. It did not work in my second smallest...a 12g A/P.I do promote it, but only for the small tanks. Yes, I would recommend this product to my friends.

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0 of 4 people found the following review helpful:

Below Average

DISAPOINTMENT by LAWRENCE SCOTT

Experience Level: Intermediate

Posted on 7/9/2009 from SAUSALITO, CA UNITED STATES

Comments: For the price, there are other products that do a better job. Using Model 1...on a 65 gallon...flow rate is to low. Wish I could take the time to return it. I would not recommend this product to my friends.

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0 of 0 people found the following review helpful:

Excellent!

Fantastic!! by sparky7

Experience Level: Intermediate

Posted on 7/9/2009 from ORLANDO, FL UNITED STATES

Comments: Excellent product. Easy to maneuver. Maybe a little too powerful for a 12 gallon nano reef tank..., which is what I am using it for,but can be used if positioned carefully. Yes, I would recommend this product to my friends.

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0 of 0 people found the following review helpful:

Great

Hydor Koralia 3 by Woodbutcher-Reef

Experience Level: Intermediate

Posted on 7/8/2009 from BANNING, CA UNITED STATES

Comments: Used the pump in a 90g "softy reef tank" moved the water very well. On the third day of use a newly added anenome got stuck in the pump, saved the anenome, removed the pump. I will use the pump in a new Lee-Mar 240g tank being setup as a "FOWLR". Like the mag mount and water flow. Yes, I would recommend this product to my friends.

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0 of 0 people found the following review helpful:

Excellent!

Good pump by WDR

Experience Level: Beginner

Posted on 7/6/2009 from SAN JOSE, CA UNITED STATES

Comments: Small, quiet, and pumps well. I have two of these in my 30 gal tank. Yes, I would recommend this product to my friends.

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0 of 0 people found the following review helpful:

Excellent!

Great pumps by PANG YANG

Experience Level: Intermediate

Posted on 7/2/2009 from BANNING, CA UNITED STATES

Comments: I've used various powerheads, but these have been the best so far that I've used. These have magnets and will not move or fall off unlike others I've used. I have two nanos and they work great in my 10 gallon tank. If you have anything bigger than a 10 gallon tank, think about the Koralia 1-4. These are small, efficient, and very quiet. One of the best pumps I've used, look so simple yet work so well. I will be buying more Koralia's in the future for tank upgrades. Yes, I would recommend this product to my friends.

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0 of 0 people found the following review helpful:

Excellent!

Great Buy by PC

Experience Level: Intermediate

Posted on 7/2/2009 from OLIVE BRANCH, MS UNITED STATES

Comments: I own several K2 - K4's and these pumps never disappoint. I use mine on a 'wavemaker' and while not really designed for that, they are somewhat noisy on startup. However, the benefits outweigh the inconvenience. If you are looking to provide some motion for your ocean, then you are on the right reef with this pump. Yes, I would recommend this product to my friends.

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0 of 0 people found the following review helpful:

Excellent!

Hydor Koralia 4 by JAY JOINER

Experience Level: Expert

Posted on 6/29/2009 from MANSFIELD, GA UNITED STATES

Comments: These pumps are, hands down, the best on the market for performance and price. Two HK4's really churn the water in a 100 gal. tank, yet produce an extremely gentle current. Acro really thrive and fish stay active. Great for any beginner to expert reef enthusiast. Yes, I would recommend this product to my friends.

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1 of 1 people found the following review helpful:

Excellent!

K3 kicks butt by The Texas Wine Guy

Experience Level: Intermediate

Posted on 6/27/2009 from MAGNOLIA, TX UNITED STATES

Comments: I have a 50 Super High (30L x 13W x 32H) and had a K1 and a K2. My circulation was still much too low as I had dead spots. The addition of the K3 made a huge difference. IMO, if you have a 40 gallon or larger, get the K3 instead of the K2. Both are great products and a great price. Yes, I would recommend this product to my friends.

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0 of 0 people found the following review helpful:

Excellent!

240 gph by ALEX DIEDE

Experience Level: Expert

Posted on 6/27/2009 from VERMILLION, SD UNITED STATES

Comments: Pump works well. Small and not too noticable. I use it to keep a current through a log (hard to clean) area in my 75 gallon aquarium. I have sand substrate and it doesn't bother this powerhead at all! Yes, I would recommend this product to my friends.

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0 of 0 people found the following review helpful:

Excellent!

HYDOR KORALIA by VICTOR PINEDO

Experience Level: Intermediate

Posted on 6/24/2009 from LA PUENTE, CA UNITED STATES

Comments: WORKED OUT JUST RIGHT THANK YOU Yes, I would recommend this product to my friends.

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0 of 0 people found the following review helpful:

Excellent!

Koralia Nano by MICHAEL ALLEN

Experience Level: Intermediate

Posted on 6/22/2009 from SOLON, OH UNITED STATES

Comments: Great little pump! Wisper quite and doesn't run hot. I have one of these in a standard 10 gallon with softies and a few LPS and it provides just enough variable flow to keep things moving without blowing them around too much. Corals move gently and naturally. Highly recommend for smaller tanks that don't need a ton of flow. Yes, I would recommend this product to my friends.

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0 of 0 people found the following review helpful:

Excellent!

Good choice by VIRGINIA C

Experience Level: Intermediate

Posted on 6/15/2009 from BRUNSWICK, GA UNITED STATES

Comments: I have a 55G marine tank, with fish and live rock and few invertebrates. I have two of these pumps in the tank. The pump was easy to assemble and hook up. Love the flexibility of placement and directing water flow. Looks nice in the tank and easy to clean. Keeps the water moving, overall a good choice. Yes, I would recommend this product to my friends.

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0 of 0 people found the following review helpful:

Great

Powerful and quiet by CMC

Experience Level: Intermediate

Posted on 6/14/2009 from OAKTON, VA UNITED STATES

Comments: Whisper quiet and very powerful. Can't ask for much more in a pump. The only drawback is that its size is a little large for my 12G nano, so the pump is quite noticeable. There's really no place to tuck this pump out of the way. Yes, I would recommend this product to my friends.

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0 of 0 people found the following review helpful:

Average

ok pump by JohnL

Experience Level: Intermediate

Posted on 6/5/2009 from EL CAJON, CA UNITED STATES

Comments: was not enough flow for my 12 gallon tank. Will be upgrading to the Vortech MP10. Yes, I would recommend this product to my friends.

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0 of 1 people found the following review helpful:

Excellent!

great pump by CHARLES GOODMAN

Experience Level: Intermediate

Posted on 5/27/2009 from NORTHRIDGE, CA UNITED STATES

Comments: For the money, you just can't beat it. They run for a very long time and are well built. There are newer models that are better, but for the money you just cannot beat this pump. I have had a few for many years now. Yes, I would recommend this product to my friends.

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0 of 0 people found the following review helpful:

Excellent!

Koralia 1 by JEREMY

Experience Level: Intermediate

Posted on 5/14/2009

Comments: I have two of these in my 46 bowfront and I love them. They create a very nice broad flow throughout the tank. For the price, these are very hard to beat. Yes, I would recommend this product to my friends.

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0 of 0 people found the following review helpful:

Excellent!

circulation pump by JENNIFER BRESNAHAN

Experience Level: Beginner

Posted on 5/13/2009 from JACKSONVILLE, FL UNITED STATES

Comments: i have yellow tangs that were not very active until i got the new circulation system and now there alot more active and energenic. Yes, I would recommend this product to my friends.

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0 of 0 people found the following review helpful:

Excellent!

Hydor Koralia Circulation pump by KEITH APPIS

Experience Level: Intermediate

Posted on 5/12/2009 from CARENCRO, LA UNITED STATES

Comments: The Koralia 3, 115v is a beast! It flows so well, I hid it behind a large piece of coral to help dissipate the stream of water. So I have great movement through out the tank and the pump isn't even visible. I like! Yes, I would recommend this product to my friends.

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0 of 1 people found the following review helpful:

Great

Good by Jeff

Experience Level: Intermediate

Posted on 5/10/2009

Comments: Good pump. Not too strong current. I would not recommend this product to my friends.

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0 of 0 people found the following review helpful:

Great

Koralia 3 by KLINTON LITTLE

Experience Level: Intermediate

Posted on 5/9/2009 from EVERETT, WA UNITED STATES

Comments: all in all it wasn't as powerful as i intended it to be, but it did the job along with a Koralia 3 that i have at the opposite side of my 90 gal marine setup. Yes, I would recommend this product to my friends.

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1 of 1 people found the following review helpful:

Excellent!

Great Product for Reef Tanks by MIKE BELL

Experience Level: Intermediate

Posted on 5/7/2009 from EDMOND, OK UNITED STATES

Comments: I replaced two Penquin 1140 powerheads with two Koralia 2 in my 110 reef tank. They give me the supplemental flow I need without over powering the tank. The suction cup with the magnet outside support is a plus. The corals that don't need a strong flow have responded immediately. Yes, I would recommend this product to my friends.

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0 of 0 people found the following review helpful:

Excellent!

Great powerhead by Nigthawk4211

Experience Level: Beginner

Posted on 5/7/2009 from SALT LAKE CITY, UT

Comments: I've been using a Koralia Nano pump for several months now, and just bought another. They are great powerheads; small, nice broad flow stream, reliable operation, no suction cups, and an affordable price. My one quibble is that it's a bit tricky to direct the flow because of the way it attaches to the magnet (you can't turn it too far or it'll fall off.) I've seen some of the larger versions of this pump in use at an LFS and they appear not to have this issue. Yes, I would recommend this product to my friends.

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0 of 0 people found the following review helpful:

Excellent!

Koralia powerhead by MaineAtHome

Experience Level: Intermediate

Posted on 5/2/2009

Comments: great water flow from a small pump that is easy to position. Yes, I would recommend this product to my friends.

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0 of 0 people found the following review helpful:

Excellent!

Super! by JOHN SHOOK

Experience Level: Intermediate

Posted on 4/29/2009 from COLORADO SPRINGS, CO UNITED ST

Comments: I love these little pumps. Just set them and forget them! Yes, I would recommend this product to my friends.

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0 of 0 people found the following review helpful:

Excellent!

Wonderful by MEL

Experience Level: Intermediate

Posted on 4/28/2009 from HAVELOCK, NC UNITED STATES

Comments: This is the third hydor I have purchased in the past several years.....I feel that these items are a wonderful improvement for aquarists. The power they generate takes minimal wattage and allow a desired directed flow for corals in my aquarium They do not fall or slide out of place and are easily removed for cleaning. I still have all three. Yes, I would recommend this product to my friends.

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Excellent!

HYDRO KORALIA POWERHEADS by EDDIE C.

Experience Level: Intermediate

Posted on 4/28/2009 from PEMBROKE PINES, FL UNITED STAT

Comments: I RECOMMEND THE 1200, BECAUSE OF ITS POWER. I HAVE 110 GALLON TANK, AND I PUT ONE 1200 ON EACH END. THE CIRCULATION HAS IMPROVED BY 200%. ITS VERY EASY TO SET UP, BECAUSE OF THE MAGNETS. BIGGER IS BETTER! Yes, I would recommend this product to my friends.

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1 of 1 people found the following review helpful:

Excellent!

Great Pump by AL TONGUIS

Experience Level: Expert

Posted on 4/28/2009 from BATON ROUGE, LA UNITED STATES

Comments: Great Pump, operates just as advetised if not better. These pumps are well built, and they last! I have been running 2 #1 pumps for over 5 years now with no problems. But everyone said I needed at least #2 pumps in my 75 Gal. Reef tank, so I bought one and took out one of the #1 pumps. Awesome flow yet gentle, and for the price you can't beat it. Yes, I would recommend this product to my friends.

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0 of 0 people found the following review helpful:

Great

Real Quiet by JOHN

Experience Level: Intermediate

Posted on 4/22/2009 from LAS VEGAS, NV UNITED STATES

Comments: I was looking for something with a lot of flow, and that are quiet. these powerheads are super quiet, the flow could be higher I think its cause im used to the maxiflow 1200 with the turbo kits... great product will buy more soon for other tanks Yes, I would recommend this product to my friends.

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0 of 0 people found the following review helpful:

Great

Hydor Koralia Powerhead by SCOTT HARVEY

Experience Level: Intermediate

Posted on 4/21/2009 from VALENCIA, CA UNITED STATES

Comments: The design is fantastic. The magnets are a great idea as suction cups never last in keeping a pump in place. The flow is also good. They only complaint is that i have it attached to a wavemaker power strip and each time it starts it is quite noisy. Yes, I would recommend this product to my friends.

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0 of 0 people found the following review helpful:

Great

mini-head by KEV

Experience Level: Intermediate

Posted on 4/17/2009 from CARY, NC UNITED STATES

Comments: this thing is tiny, makes for nearly no footprint in the tank. wish the mount to the pump side was a little mote like the koralia 1. the nano is great for eliminating dead spots in small tanks. I have mine in a 24 aquapod works great to move the water from the bottom right near the intake grate. the next move is the ecotech MP20 just love the idea of a wave. but for the time 20 bucks on this is a great deal. minus one star for the mount, and the cheezy pop-on-pop-off grate cover. Yes, I would recommend this product to my friends.

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0 of 0 people found the following review helpful:

Excellent!

Koralia by JEFFRY BURD

Experience Level: Intermediate

Posted on 4/17/2009 from SAN ANTONIO, TX UNITED STATES

Comments: Nice gentle current- makes up 3 powerheads in tank. Most powerheads too strong of a current. Yes, I would recommend this product to my friends.

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0 of 0 people found the following review helpful:

Great

Great for the $ by gabbagabbawill

Experience Level: Intermediate

Posted on 4/16/2009 from ATLANTA, GA UNITED STATES

Comments: These pumps don't really seem as though they are putting through as much flow as they claim. They do provide a decent amount of circulation that is not extremely directional like an aquaclear (which is a good thing). I found one thing misleading - you can't easily adjust the position of the pump just by moving the magnet. I still have to stick my hand in the tank to get it in position. It's still a lot easier to position than the common alternatives, which is why I give it 4 stars instead of 3. Yes, I would recommend this product to my friends.

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1 of 1 people found the following review helpful:

Below Average

DOA by ARTHUR GAMBOA

Experience Level: Beginner

Posted on 4/9/2009 from LOLO, MT UNITED STATES

Comments: I ordered 2 of the Koralia 3s one worked the other was DOA. I now have to pay return shipping to get a replacement. The other one seems to work alright it does seem a little weak though. Yes, I would recommend this product to my friends.

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2 of 2 people found the following review helpful:

Excellent!

Great value by NATE B

Experience Level: Beginner

Posted on 3/25/2009 from WYLIE, TX UNITED STATES

Comments: Item worked right out of the box like a charm!!! Extremely quite and powerful yet subtle. Nice product. Yes, I would recommend this product to my friends.

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1 of 5 people found the following review helpful:

Below Average

TWO WEAK by THOR SANDERSON

Experience Level: Expert

Posted on 3/24/2009 from SAMMAMISH, WA UNITED STATES

Comments: I Put four of these in my 20 gallon SPS nano tank. They just don't push enough water, some corals died at base. With the Koralia's you need to go with a bigger one then what you think. I am running a K1 and a K3 in a 20 gallon tank! I would not recommend any of these power heads for anything more then a LITTLE extra movement. I would not recommend this product to my friends.

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3 of 3 people found the following review helpful:

Average

Nice but not very powerful.. by Bizz

Experience Level: Intermediate

Posted on 3/20/2009 from South Florida

Comments: I bought 2 #3's for my 90 gallon and its just not enough flow. They def dont feel like 850 GPH. You cant feel the flow 12 inches from the pump. But they are very nicely designed. Love the suction cup design and ease of adjustment and placement. Just wish I wouldve gone bigger. If you have a big tank (55+) def go with #4's. Yes, I would recommend this product to my friends.

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1 of 1 people found the following review helpful:

Great

Koralia pumps by MARK GAYHART

Experience Level: Intermediate

Posted on 3/11/2009 from DOVER, NH UNITED STATES

Comments: I have 2 of the koralia 3 for my tank I love the mounting system with the magnets. No more suction cups! I do not recomend them for use with wavemakers the pumps chatter an awfull lot when they come on. The flow is great! Quiet and calm currents. Yes, I would recommend this product to my friends.

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2 of 4 people found the following review helpful:

Unsatisfactory

not strong enough by K Luong

Experience Level: Intermediate

Posted on 3/5/2009 from FOUNTAIN VALLEY, CA UNITED STA

Comments: I bought two of the 600 gallon/hr powerhead for my 360gallon tank. However, this powerheads seem not as powerful as my 450g/h pump for the same price. I don't think you can feel the I would not recommend this product to my friends.

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2 of 2 people found the following review helpful:

Excellent!

great product by BRENT HASCALL

Experience Level: Intermediate

Posted on 3/3/2009 from EDEN PRAIRIE, MN UNITED STATES

Comments: I just put two of the Koralia 3's on a 46 bowfront reef tank and it is great. I would say if your tank is under 4' long or 55 gallons to definitely go with a 2. I hooked up dimmer switches to mine to power them down a bit, it kinda works. Great product and good dispersement of water flow. Yes, I would recommend this product to my friends.

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1 of 1 people found the following review helpful:

Excellent!

love it by JERRY

Experience Level: Intermediate

Posted on 2/25/2009 from SELAH, WA UNITED STATES

Comments: I have 2 of these in my 125 gallon tank could not be more pleased with the performance Yes, I would recommend this product to my friends.

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3 of 3 people found the following review helpful:

Great

Koralia 4's by DAVID CANNELLA

Experience Level: Intermediate

Posted on 2/23/2009 from ALLENTOWN, NJ UNITED STATES

Comments: Picked up two of the #4 pumps for my 150G reef tank after having a nano model and a #2 in there already over a year. The nanos located on the left at the base of my rock pile moving just enough water around and the #2 is on the lower right of the pile moving flow towards the left and also removes a dead spot. I replaced the Maxi-Jet 1200s there prior hooked up to a alternating wavemaker up top and behind my main tanks returns. The Maxi-Jet pumps do work better and are quieter with restarting with a timer due to design being different. I have replaced Maxi-Jets props over the years and had problems with one of the Jets nozzles turning due to vibration so I made the change. I can now direct the water flow much easier off the front glass or away from certain corals without that harder shot/blast of water thus not even needing a timer. These actually arent as powerful feeling as I thought they might be being the Maxi-jets 1200s are 295GPH and these are 1200GPH oddly enough. I guess it feels like double the flow of the #2. Even with the new front directional flow adaptors they are just a wider and gentler feeling flow. Dont get me wrong, they do move a lot of water, its just not the concentrated blast of the Maxi-jet as you place your hand in front of them. When I toss in food like cyclops I notice no areas on non-movement now. I like that they give you a screen for the fronts even though Ive never had a snail or fish wander in before, and the center rod for the prop is now a sturdier steel and no longer breakable plastic. The maxi-jets also were harder to place in my tank, the magnets of these make it so easy to angle, move at any height/section of the tank when corals grow with time. Its been a little over two weeks now since I placed them and I can say that my tank corals and featherdusters are moving much better and the extra flow has my star polyps and leathers looking better. I like them. Yes, I would recommend this product to my friends.

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1 of 3 people found the following review helpful:

Average

Worked Well for One Year by PAUL

Experience Level: Intermediate

Posted on 2/22/2009 from COSTA MESA, CA UNITED STATES

Comments: An average product at best. Construction was indifferent and it worked fine for about one year. It recently stopped working so I pulled it out figuring it only needed some cleaning. I took it over to the kitchen sick and scrubbed it down. I filled the sink with water and plugged it in and ... nothing. It was then that I discovered that it was leaking current into the water. I found out the hard way. I won't be buying another Koralia. I would not recommend this product to my friends.

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0 of 0 people found the following review helpful:

Great

water movement by EDWARD CHISHOLM

Experience Level: Expert

Posted on 2/22/2009 from LAOTTO, IN UNITED STATES

Comments: Nice little pump. Quite can be stuck just about anywhere. Moves more water than any other pump tried. Yes, I would recommend this product to my friends.

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0 of 0 people found the following review helpful:

Great

wide flow by MICHELLE

Experience Level: Intermediate

Posted on 2/21/2009 from AUBURN, CA UNITED STATES

Comments: I really like these pumps, they have a wide area of flow compared to regular powerheads.They really make the water surface ripple. I bought the 2, theyre a little expensive so im not giving five stars. Yes, I would recommend this product to my friends.

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0 of 3 people found the following review helpful:

Unsatisfactory

Wimpy by Mr. fish

Experience Level: Intermediate

Posted on 2/18/2009 from BROOMFIELD, CO UNITED STATES

Comments: It works fine, for 5 months. I would not recommend this product to my friends.

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0 of 0 people found the following review helpful:

Excellent!

awesome power by LUCIO ANDRADE

Experience Level: Intermediate

Posted on 2/6/2009 from LONG BEACH, CA UNITED STATES

Comments: Extremely powerful current. excellent design Yes, I would recommend this product to my friends.

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3 of 5 people found the following review helpful:

Great

Korlalia 1, 400 gph?? by RON

Experience Level: Beginner

Posted on 2/1/2009 from EVERETT, WA UNITED STATES

Comments: I don't think so... even with the little flow concentrator it does not impress me in my 24 gallon tank. I use this in conjunction with a Maxijet 1200 for the return pump. The magnet for mounting is Very nice to use though. Also, I was not too happy with the limited travel it has for positioning it within the tank. I mounted it on the side and it would not adjust close to the side of the tank as I wanted it to. I ended up cutting a Notch in the ball swivel base so it would be about to move closer to the glass like I wanted it to. Then the water would flow where I wanted it to, to begin with. I would give it 3.5 stars (due to the lack of flow and having to mod it) but cannot do 1/2 stars, so I'll be a nice guy and round up to 4 stars. Yes, I would recommend this product to my friends.

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0 of 0 people found the following review helpful:

Great

WOW by CARY NICHOLS

Experience Level: Beginner

Posted on 1/31/2009 from GLADEWATER, TX UNITED STATES

Comments: Man this thing will push some water around. I didn't realize that you needed such strong water movement in an aquarium. I'm a beginner and trying to get a good start in this and read several in places and reviews about Hydor Koralia and it seemed like a good start. I don't care for the size of it but I guess that's something I'm going to have to work around maybe hide it with some rock or something. The price wasn't to bad and it came with magnets to hang it with which I really liked and seems to hold very well Yes, I would recommend this product to my friends.

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0 of 0 people found the following review helpful:

Great

Still works by TIM MENDENHALL

Experience Level: Intermediate

Posted on 1/29/2009 from OAK RIDGE, NC UNITED STATES

Comments: STILL works so far, much cheaper here than a retail store Yes, I would recommend this product to my friends.

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0 of 0 people found the following review helpful:

Excellent!

great little pump by JAMES PECORARO

Experience Level: Expert

Posted on 1/28/2009 from CHICAGO, IL UNITED STATES

Comments: I picked it up for some added current in my 29 gallon nano, it works well, delivers plenty of current, and its nice and small, great little pump! Yes, I would recommend this product to my friends.

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0 of 0 people found the following review helpful:

Excellent!

Title by DOUG RYAN

Experience Level: Intermediate

Posted on 1/28/2009 from MARTINS FERRY, OH UNITED STATE

Comments: Loved it go bigger than u need for sure had red stuff growing everywhere before now nothing solved problem in a day Yes, I would recommend this product to my friends.

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2 of 2 people found the following review helpful:

Excellent!

Powerful Pump by Anthony

Experience Level: Intermediate

Posted on 1/27/2009 from West Palm Beach, FL U.S.

Comments: I just picked up a Koralia #4 at the LFS and have had it set up for just over 3 days now. At first I was a little worried about the flow being too strong as I initially plugged it in in my 90 gallon reef tank, but after a day or so my Hammer and Leathers seemed to be doing muuuuch better in terms of movement. They're moving more naturally thanks to the powerful yet gentle flow not to mention my fish are having a ball blasting through the new current in the tan :). Yes, I would recommend this product to my friends.

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1 of 1 people found the following review helpful:

Great

Koralia 3 by JEFF P

Experience Level: Intermediate

Posted on 1/27/2009 from PHOENIX, AZ UNITED STATES

Comments: This Koralia 3 is a great powerhead. Unfortunately it is WAY too powerful for my 29 gal. It's either stirring up sand or spraying water out of the tank. All of my soft corals are bent over from the force of this pump. And it doesn't matter where I put it in the tank. Even 3 feet on the other side of the tank, the water is turbulent. The deflector helps centralize the flow somewhat, but only makes the strength of the flow stronger. My guess is it would be great in a 55+ gal. My other powerhead is a SEIO (650 gph) and this Koralia 3 (850 gph) feels like almost double the flow of that SEIO. Other than it being too powerful for my set up, this is a great product. Well made. Magnet mount is great. WAY easier to clean than my SEIO. Everything fits together well. Definitely a good quality product. Yes, I would recommend this product to my friends.

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1 of 1 people found the following review helpful:

Average

Good Value, great size by KAREN CABELL

Experience Level: Intermediate

Posted on 1/27/2009 from JACKSONVILLE, FL UNITED STATES

Comments: The only reason I couldn't give this product the full stars is because they don't seem very durable and I had to purchase this one to replace a previous koralia nano that did not make it 6 months. I have a friend that had 2 go bad as well. When they work, they work great and are easy to place in a small nano tank. I just wish the held up better! Yes, I would recommend this product to my friends.

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0 of 0 people found the following review helpful:

Excellent!

Hydror Koralia 2 by TOM

Experience Level: Intermediate

Posted on 12/27/2008 from IRVINE, CA UNITED STATES

Comments: They work great in my 37 gallon saltwater tank. quiet and plenty of flow Yes, I would recommend this product to my friends.

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1 of 1 people found the following review helpful:

Excellent!

great little powerhead!! by Matty

Experience Level: Intermediate

Posted on 12/22/2008 from Wi

Comments: I bought one of these for my 10 gallon nano reef and LOVE it!! i was so happy with the performance i just ordered 2 more for a bit more flow. Very satisfied, BUT i would not recommend the Nano for anything larger than 15 gallons or you might be disappointed. Yes, I would recommend this product to my friends.

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4 of 4 people found the following review helpful:

Great

Powerhead 1 by Paigegius

Experience Level: Expert

Posted on 12/22/2008 from OAK BROOK, IL UNITED STATES

Comments: Great product except there was no way to know which one to buy. I have a 75 gal and the two 1's I bought aren't enough. Yes, I would recommend this product to my friends.

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0 of 0 people found the following review helpful:

Average

Feels Weak by Vinnie

Experience Level: Intermediate

Posted on 12/16/2008 from New Jersey

Comments: I thought it would have more power but it gently moves a water so it could be good just not for my application. If you want to blow this directly on corals you could and not hurt them. Hydor Koralia 1. I would recommend getting at least one size larger than you would think that you need. Its not like Old School powerheads. Yes, I would recommend this product to my friends.

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2 of 2 people found the following review helpful:

Excellent!

Great Powerheads by CHRISTY

Experience Level: Beginner

Posted on 12/13/2008 from VALENCIA, CA UNITED STATES

Comments: I have 3 Koralia #2's in my 75 gallon tank. They work great for directing water flow for my fish and corals. I would highly recommend them. I especially like that they have the magnets so that you can put them anywhere in the tank and they don't look too out of place. Yes, I would recommend this product to my friends.

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0 of 0 people found the following review helpful:

Average

hydro koraalia by NIEN CAO

Experience Level: Beginner

Posted on 12/11/2008 from HOUSTON, TX UNITED STATES

Comments: this product work very well with my bio cube 14. But the only problem with it is it increases temperature of the water up to 2 to 3F. Which not good for corals. I would recommend to buy the one that place outside the tank. Yes, I would recommend this product to my friends.

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0 of 0 people found the following review helpful:

Excellent!

Good Pump by Matt Mc

Experience Level: Expert

Posted on 12/11/2008 from FOUNTAIN VALLEY, CA UNITED STA

Comments: Very good power and wide flow pattern for cheap! Very similar to pumps like Tunze which cost many times more. Used in a Fish only with Invertebrates to increase flow for algae control. Does it's job. Also very quiet with minimal heat production. Yes, I would recommend this product to my friends.

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1 of 2 people found the following review helpful:

Great

very good by STEFAN TREDRAY

Experience Level: Beginner

Posted on 12/11/2008 from RANCHO CUCAMONGA, CA UNITED ST

Comments: i put this in a 28g nano cube and its making the extra circulation i was looking for Yes, I would recommend this product to my friends.

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0 of 2 people found the following review helpful:

Average

not by MIKE DOLSCHENKO

Experience Level: Intermediate

Posted on 12/10/2008 from CHARLOTTE, NC UNITED STATES

Comments: got 2 Hydor Koralia 4 and a Red Sea Wavemaster Pro Wavemaker. the power heads make alot of noise when the turn on and the direction hoods fell off alot. I would not recommend this product to my friends.

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0 of 0 people found the following review helpful:

Great

PistolaJay by JON-PAUL ANDERSON

Experience Level: Intermediate

Posted on 12/8/2008 from LONG BEACH, CA UNITED STATES

Comments: The powerheads do an effective job. Yes, I would recommend this product to my friends.

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0 of 0 people found the following review helpful:

Great

power head by RODNEY CORYER

Experience Level: Intermediate

Posted on 12/7/2008 from APO, AP UNITED STATES

Comments: They started out fine. Then the direction hoods fell off once. I snapped them back on and haven't had a problem since. Had to direct them away from the bottom because they moved the sand to much. Really powerful. Yes, I would recommend this product to my friends.

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0 of 0 people found the following review helpful:

Great

Works Well by Aimiel

Experience Level: Intermediate

Posted on 12/2/2008 from CINCINNATI, OH UNITED STATES

Comments: I found that this pump works well, but isn't sufficient for my 90 gallon tank. I'll have to get a bigger one, but this one will be my 'reserve' pump, in case the larger one breaks down. My previous pump was much weaker, I purchased at my LFS; and is probably not sufficient for most 20 gallon tanks. I like the amount of water moved by this pump for the size and looks. Very pleased with the purchase, but I'll do more research next time. Yes, I would recommend this product to my friends.

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0 of 0 people found the following review helpful:

Excellent!

Very Pleased. by GARY B

Experience Level: Expert

Posted on 11/29/2008 from LOS ANGELES, CA UNITED STATES

Comments: I've had my Koralia about a week, and so far, I like it very much. I'm using it on a tank with 1/2 inch glass, and the magnet seems to be holding the pump in the exact position I placed it. The water flow is, as the advertisement says "powerful and delicate." Yes, I would recommend this product to my friends.

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1 of 1 people found the following review helpful:

Excellent!

Great Quality by VINCENT AMARO

Experience Level: Beginner

Posted on 11/22/2008 from SAN JUAN CAPISTRANO, CA UNITED

Comments: Well worth the money. Good quality and nice water movement. The mounting system is top quality, easy to use and looks very clean in the tank. Yes, I would recommend this product to my friends.

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3 of 3 people found the following review helpful:

Great

hydor koralia by PETE 75g

Experience Level: Intermediate

Posted on 11/20/2008 from WEST ALLIS, WI UNITED STATES

Comments: I have a 75 gal tank, I bought 2 of these to replace 2 maxi jet 1200s, these are easier to move around the tank because of the magnet base. I can angle these anywhere I want to create the perfect ocean effect. These move more water with less power I highly recommend getting one size bigger than you think you will need. That's what I did and they work great. Yes, I would recommend this product to my friends.

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0 of 0 people found the following review helpful:

Great

Lots of flow by MARK RYGH

Experience Level: Intermediate

Posted on 11/10/2008 from UNION CITY, CA UNITED STATES

Comments: It moves a lot of water for just a few watts. But without the nozzle on, tends to spray sideways a lot. With the nozzle, a bit too directional and high speed. Magnet/suction works great. Does not move at all. Yes, I would recommend this product to my friends.

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0 of 0 people found the following review helpful:

Excellent!

Koralia by Jon

Experience Level: Intermediate

Posted on 11/7/2008

Comments: Had two #2's and one #4 when I had my 90g setup. Now using a Nano on my 10g and love the spread out flow over the direct flow of other powerheads. Yes, I would recommend this product to my friends.

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0 of 0 people found the following review helpful:

Great

good buy by DYLAN MORENO

Experience Level: Intermediate

Posted on 10/19/2008 from SANTA MARIA, CA UNITED STATES

Comments: i have a 120 fish only tank. flow is great now that ive added the koralia. little small for my tank but i knew that wen buying it. great buy for price. very quiet and easy to install Yes, I would recommend this product to my friends.

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3 of 3 people found the following review helpful:

Excellent!

Wide Water Flow by KENT

Experience Level: Intermediate

Posted on 10/17/2008 from San Francisco, CA UNITED STATE

Comments: I have it running in my 10 gallon nano, and there is a lot of water movement even though you may not feel it. My fish has become more lively since the powerhead was added. They don't hide in the liverock as much. Yes, I would recommend this product to my friends.

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0 of 1 people found the following review helpful:

Great

koralia by CHRIS KOPY

Experience Level: Intermediate

Posted on 10/7/2008 from WASILLA, AK UNITED STATES

Comments: They work great Yes, I would recommend this product to my friends.

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0 of 0 people found the following review helpful:

Great

Simple to use and effective by DCH

Experience Level: Beginner

Posted on 10/1/2008 from JAMAICA PLAIN, MA UNITED STATE

Comments: Our local aquarium supply store has these in all its tanks, which we took as a good recommendation. They work straight out of the box and the magnet system is great. However, it does take a bit of time to work out how to adjust the direction of the flow as the heads can't be angled as much as I had expected (complicated by the fact that we have a hexagonal tank). Yes, I would recommend this product to my friends.

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1 of 1 people found the following review helpful:

Excellent!

Great Design by Bill Heapps

Experience Level: Expert

Posted on 9/30/2008 from PORT WASHINGTON, NY UNITED STA

Comments: well designed, no need to worry about intake clogs, easy to relocate, moves water without powerful over surges. using 2 pumps without wavemaker for 100 gal reef. always have a visual of moving propeller to check if working. Too new to rate the durability.... Yes, I would recommend this product to my friends.

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0 of 0 people found the following review helpful:

Great

hydor koralia nano by BRUCE HASKELL

Experience Level: Intermediate

Posted on 9/24/2008 from PETALUMA, CA UNITED STATES

Comments: Great little pump. I have two of them in my 55gal tall tank,which replaced two rio 800 pumps. First reason was the rio pumps are noisy, unlike the hydor pumps which are super quiet,second the hydor's seem to move the water around in a wider path. I recomend these to anyone who has a reef tank. Yes, I would recommend this product to my friends.

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1 of 1 people found the following review helpful:

Excellent!

suprised by ALFRED AMENDOLA

Experience Level: Intermediate

Posted on 9/23/2008 from PORT JEFFERSON STATION, NY UNI

Comments: Icredible flow. I put myn hand in front of the power head and it did'nt feel that strong. I guess that's because it's a wide current rather than a concentrated one. THis morning all my live rock was clean from sediment and ditrius for the first time ever. The mounting was simple and secure, and the pump is super quiet. Yes, I would recommend this product to my friends.

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0 of 0 people found the following review helpful:

Great

K-4 by fishdude

Experience Level: Intermediate

Posted on 9/21/2008 from SAN JOSE, CA UNITED STATES

Comments: Great product, only complaint is that the magnet is too weak to securely hold...If you have a glass tank ABOVE 150 GALLON the glass be too thick.... would like to buy another but the price has increased $11 bucks since i bought my first one.. Yes, I would recommend this product to my friends.

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0 of 0 people found the following review helpful:

Excellent!

compact power! by 29 DIY AIO

Experience Level: Beginner

Posted on 9/20/2008 from INVER GROVE HEIGHTS, MN UNITED

Comments: I have 2 of these in my 29 gallon DIY AIO. These with the Mag 9.5 give me unbelievable water flow. No scummy surface for my critters! Yes, I would recommend this product to my friends.

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0 of 0 people found the following review helpful:

Excellent!

great by RYAN

Experience Level: Intermediate

Posted on 9/17/2008 from AVON, CO UNITED STATES

Comments: affordable, lasted me almost 2 years on the first one, I have owned 3 of them. Easy to clean, stay pointed in the right direction, affordable, and moves a lot of water - GPH. Ryan Yes, I would recommend this product to my friends.

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0 of 0 people found the following review helpful:

Excellent!

I like them a lot by PETER LANDY

Experience Level: Intermediate

Posted on 9/15/2008 from SCHENECTADY, NY UNITED STATES

Comments: Haven't had them for long yet but it looks great so far. For the price it works very well and pushes a lot of water. I'd buy them again. Yes, I would recommend this product to my friends.

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0 of 0 people found the following review helpful:

Excellent!

Love It!! by DELILA HICKERSON

Experience Level: Expert

Posted on 9/14/2008 from EVANSVILLE, IN UNITED STATES

Comments: Very easy to to place in the tank without the bulkiness of most powerheads. It adds just the right amount of waterflow. I also like the way you rotate the head to any position. And the magnet holding it too the glass.. WOW why didnt I think of that? :) Yes, I would recommend this product to my friends.

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Excellent!

love it!! by Rhino

Experience Level: Intermediate

Posted on 9/10/2008

Comments: i love my new power head. its peforms better than any other power head i have owned before. the others ones (maxi jet and tetra) the fish just seemed to not pay attention to. they are now alot more active!! brung up alot of uneaten food un seen on bottom too thank you marine depot! Yes, I would recommend this product to my friends.

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1 of 1 people found the following review helpful:

Excellent!

extremely pleased by PAUL JULIAN

Experience Level: Intermediate

Posted on 9/8/2008 from ORLANDO, FL UNITED STATES

Comments: When I opened the box I was amazed when I held the pump in my hand. The quality of the materials used to make this product surpassed my expectations. It is about the size of an extra jumbo egg, or an egg shaped raquetball, perfect for my 11 gallon via-aqua nano reef tank. Every coral in my tank is getting loved from this little powerhead. Very impressive indeed. Instead of a single powerful stream of water blasting across the tank, the hydor koralia pushed large amounts of water allowing the whole tank to breath in one big heartbeat of circulation. Strong yet delicate water movement in the tank. Yes, I would recommend this product to my friends.

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Excellent!

awesome little power head by JAMES MARK FARRER

Experience Level: Intermediate

Posted on 9/4/2008 from LAKELAND, FL UNITED STATES

Comments: this is the second one for my 12 gallon nano.. i love the fact that it does not throw sand everywhere... when i can afford the controllable one they are next... i love the size of these things as well they are awesome.. smaller than the nano tunze's and not as powerful either which is good.. Yes, I would recommend this product to my friends.

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Great

Perfect flow by ThrusH

Experience Level: Intermediate

Posted on 8/16/2008 from TROUTDALE, OR

Comments: The nano produces a gentle wide flow pattern that works great for nano reefs. I have one in an aquapod 12 and two in a 20 long. The magnet/suction mounts are rock solid. The only down side is the amount of adjustment on the flow direction. Yes, I would recommend this product to my friends.

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Great

not bad by Water Slave

Experience Level: Intermediate

Posted on 8/14/2008 from SPRINGFIELD, VA UNITED STATES

Comments: Just got two 4’s for a 55gallon mixed tank with a 2” sand bed. I was worried they would be way too much flow from most of the other reviews, but they’re not at all (sand doesn’t even move unless you point it down). Not sure what people are talking about, but anything over 75 gallons you’re probably looking at adding a third one or something more powerful. As mentioned flow is very dispersed and PH’s are fairly big, but you already knew that… Only had them for a day, but so far they seem decent and don't look too gigantic in a 55. Yes, I would recommend this product to my friends.

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Excellent!

So far so good by GM

Experience Level: Expert

Posted on 8/7/2008 from SAN JOSE, CA UNITED STATES

Comments: I have only had the Koralia 3 & 4 recirculation pumps for about 3 weeks, and so far I am very pleased with them. Being able to lower the power from 37/33watts (RIO recirculation pumps) to 12 watts for both the Koralia #3 and #4 has reduced my 150 gallon tank temperature by ~1.5 degrees while reducing my electricity cost. As far as flow is concerned you can have a concentrated flow or a more speratic flow depending on your needs. So far, my coral and anemones are very pleased with the dynamics of the flow that these KOralias produce. As far as negative aspects, I would prefer that they have better suction cup holders in order to put them in places where you can not use the magnet option. I tried to use the suction-cup option and it would not stay for more then 1 hour (it droped to the bottom of my tank and make a big mess blowing sand everwhere). However, if you use the magenet option I don't see any problems. I highly recommend the Koralia based on what I have seen so far. However, I can not recommend the reliability of these pumps since I have only had them for 3 months so far. Yes, I would recommend this product to my friends.

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Excellent!

koralia by WILLIAM LEACH

Experience Level: Intermediate

Posted on 8/6/2008 from WENDELL, NC UNITED STATES

Comments: I have a 75g reef with 2 koralia 4s. Has been running over a year and no problems. Added a 2 for behind the rock circulation. They move lots of water without being too violent. Yes, I would recommend this product to my friends.

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Excellent!

Works great by ROBERT

Experience Level: Intermediate

Posted on 8/4/2008 from TORRANCE, CA UNITED STATES

Comments: I've actually installed four of these pumps in various sizes in two different tanks. They work great for creating circulation with the bulk of the flow going straight ahead but with some dispersing at a wider angle. The magnetic holder is a definite improvement over the suction cups. Yes, I would recommend this product to my friends.

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Great

fishman1 by fishman1

Experience Level: Intermediate

Posted on 8/4/2008 from HAZEL CREST, IL UNITED STATES

Comments: Pump came almost completely assembled & ready to go right out of the box. Used to add flow in a 100gal reef tank w/130lbs of live rock, seems to be working fine, I may even add a second one... Yes, I would recommend this product to my friends.

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Great

hydor koralia nano pump by FREDDIE

Experience Level: Intermediate

Posted on 8/1/2008 from MERRILLVILLE, IN UNITED STATES

Comments: Great pump for small setups. Just enough flow to create movement without being too powerful for some fish and corals. Yes, I would recommend this product to my friends.

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Great

Alright by tennisstar28

Experience Level: Intermediate

Posted on 8/1/2008 from JACKSONVILLE, FL UNITED STATES

Comments: I ordered two of the 3's and they do alright in 90 gallon. I actually had to add a number 2 that I had laying around in the house to get all the water flow I was looking for. Yes, I would recommend this product to my friends.

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Excellent!

Nice little pump by MATHEW REA

Experience Level: Intermediate

Posted on 7/28/2008 from OCOEE, FL UNITED STATES

Comments: I purchased 2 of these for my 90 gal tank. I have plenty of other circulation /water flow devices so these are secondary. The water temp has not risen more then half a degree. They do a nice job of creating water flow and breaking up the surface water. The magnetic suction cups are great. No more loss of suction like my old circulation pumps. Nice look as well. I would recommend them. Yes, I would recommend this product to my friends.

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0 of 0 people found the following review helpful:

Excellent!

Great Pump by JoeyGee23

Experience Level: Expert

Posted on 7/28/2008 from EAST HARTFORD, CT UNITED STATE

Comments: I placed this pump in my BioCube 29. It is pretty powerful and I need to move it around in a couple of places before finding the perfect spot to deflect flow in desired direction. Setup was a snap, the magnets are pretty strong. Yes, I would recommend this product to my friends.

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1 of 1 people found the following review helpful:

Excellent!

Good Movement by mjkleko

Experience Level: Intermediate

Posted on 7/26/2008 from EDMONDS, WA UNITED STATES

Comments: I recently got a Hydor Koralia 2 and a 3 for my 55 gallon soon-to-be reef tank that is currently cycling. I get great random flow with the two positioned on opposite ends with my return from a 30 gallon sump shooting diagonally across the flow. If I could do it again however, I would probably have gotten two 3's or a 3 and a 4. Still a great powerhead for the price however. Yes, I would recommend this product to my friends.

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Excellent!

Water movement by PETER RAIZIS

Experience Level: Intermediate

Posted on 7/25/2008 from ORANGE PARK, FL UNITED STATES

Comments: The koralia 2 provides considerably more water movement over the koralia 1. It's not an eye sore like some power heads can be. I'm very pleased with water flow in my tank now with two koralia 2's....plus a price you cant beat! Yes, I would recommend this product to my friends.

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Excellent!

EXCELLENT by NORMAN KNIGHT

Experience Level: Intermediate

Posted on 7/23/2008 from BEAUMONT, CA UNITED STATES

Comments: I replaced my Koralia 1 with the Koralia 2 because my 40 gal tank needed a little more water movement. Changing to the Koralia 2 really did the trick. I love these pumps. They are completely silent and the magnetic mounting makes placing them anywhere a snap. I am sure this won't be the last one I buy. Yes, I would recommend this product to my friends.

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0 of 0 people found the following review helpful:

Excellent!

A different powerhead by DaftPunker

Experience Level: Intermediate

Posted on 7/21/2008 from CHICAGO, IL UNITED STATES

Comments: As others have said, when you put your hand in front of the powerhead it doesn't seem like 240 gph, but you can definitely see flow all around. I like it because it's not a point flow and all my corals in the vacinity seem happy with it as it's not a powerful point of moving water. It's nice too that it's magnetic so you don't have to worry about the suction cup not working anymore or ever. Yes, I would recommend this product to my friends.

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Excellent!

My nano reef has come to life by STEVE O

Experience Level: Intermediate

Posted on 7/20/2008 from AIRMONT, NY UNITED STATES

Comments: Since installing this powerhead in my 12 G nano tank, all of the creatures in my tank are more active and appear happier and there is less algae buildup on the glass. The magnet holds the pump in place securely and the operation is silent. Very nice product. Yes, I would recommend this product to my friends.

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Excellent!

Excellent Flow by CURT BINDER

Experience Level: Intermediate

Posted on 7/19/2008 from PORT ORANGE, FL UNITED STATES

Comments: I think these powerheads are great at circulating the water in your tank. I like the diffuse flow pattern. This should help evenly circulate the water all around the tank instead of focusing the flow in one spot. Yes, I would recommend this product to my friends.

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Excellent!

Koralia Nanos by Danny

Experience Level: Intermediate

Posted on 7/19/2008

Comments: Great flow for small tanks. I have 2 of these in a 15x15x11 10g cube and they're almost too much. They don't feel like anythings coming out of them, but you can definitely see things moving in the tank. Yes, I would recommend this product to my friends.

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Excellent!

works fine! by TaNiS

Experience Level: Beginner

Posted on 7/8/2008 from TEPIC, MEXICO

Comments: I'm happy whit this pump, i been use it for a while... absolutely quiet. Yes, I would recommend this product to my friends.

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1 of 1 people found the following review helpful:

Unsatisfactory

not worth the money by JAMES CROWNING