0 of 0 people found the following review helpful:

Excellent!

Koralia 6 Magnum by GEORGE

Experience Level: Intermediate

Posted on 6/3/2009 from STOCKTON, CA UNITED STATES

Comments: Very Quiet and does what I expected her to do, it creates a lot of water movements in my 260 gal. reef tank, the corals love it and so as my fish, they swim towards it. Yes, I would recommend this product to my friends.

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0 of 0 people found the following review helpful:

Unsatisfactory

huge by DANIEL FENKER

Experience Level: Expert

Posted on 4/16/2009 from BOULDER CREEK, CA UNITED STATE

Comments: its huge!!!! i have a 90g and its way to big and does not flow much watter my maxi jet eco mod flows more I would not recommend this product to my friends.

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1 of 1 people found the following review helpful:

Excellent!

NO CHATTERING on a controller! by ALAN FLOJO

Experience Level: Intermediate

Posted on 4/13/2009 from SANTA MARIA, CA UNITED STATES

Comments: I purchased a pair of K5’s at the MAX ’09 Hydor Koralia booth. Not more than 2 weeks prior, I purchased a pair of K4’s, but then later heard rumors that the K5-8’s have been working on wavemaker modes via controllers. I verified this with the Hydor rep who showed me several design improvements that help them run without the destructive startup chatter. First, there’s built in electronics in these pumps to assist with softer startup. Second, there’s no pin shaft to fatigue and shear off. The magnetic rotor itself makes up the shaft. Third, there’s a beefy guide bushing located behind the magnetic rotor that effectively reduces vibrations. Finally, a removable guide brace on the front of the rotor assembly secures everything in place. The brace design looks like it also serves to further offset some of the start up torque. These parts are easily removable for periodic maintenance. I hope they’ll be made available as replaceable components. I have them plugged into an ACjr, wavemaker programmed to alternately turn on/off, and am pleased to report there has been NO STARTUP CHATTERING whatsoever. These pumps are vitually silent and generate a broader flow pattern than the K4’s. The K4’s seemed to generate flow in a V-like pattern. To top it off these new pumps use less power than lower flow ones. The only down side is that they are noticeably much bigger...in fact, they're huge. Also, I should have probably gone with the next size up. I think that's common advice offered in reviews for the older models. So far, I’m very pleased with these pumps. I’ve only been running them for a week, but if they stop working Hydor Koralia covers them under warranty for 2 years. Finally, high flow powerheads (other than MJ mods) that actually work on controllers! Spread the word. Nice job Hydor Koralia. Yes, I would recommend this product to my friends.

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0 of 2 people found the following review helpful:

Excellent!

Sucked by Paul SHANK

Experience Level: Intermediate

Posted on 3/25/2009 from CHARLOTTESVILLE, VA UNITED STA

Comments: all i can see now in my 10 gallon nano is my koralia magnum 8. for some reason, the torential conditions have kept me from having water in my 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 Powerhead!!! by LubbockReefer

Experience Level: Intermediate

Posted on 3/22/2009 from LUBBOCK, TX UNITED STATES

Comments: I cannot tell people how much I like this powerhead. I use the smaller models in my other reef tank, but using this in my 100 gallon is perfect. Has a good amount of power and flexibility. Big, but worth every penny. I HIGHLY suggest this if your in the market for a good powerhead. Definitely would buy another! Yes, I would recommend this product to my friends.

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1 of 1 people found the following review helpful:

Great

Good pump for $ by strendo

Experience Level: Expert

Posted on 2/5/2009 from BROOKLYN, NY UNITED STATES

Comments: These are much better than the original Koralia's and seem to be worth the $$. It's dead quiet and works as well as my Tunze's & Vortec's without the controllability those pumps offer. I use it in addition to my more expensive pumps that offer random flow. Yes, I would recommend this product to my friends.

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2 of 2 people found the following review helpful:

Excellent!

Quiet start by PERRY

Experience Level: Intermediate

Posted on 1/1/2009 from LA UNITED STATES

Comments: Moves a lot of water for low wattage. The electronic start doesn't suffer from the noise the older Koralia did. Yes, I would recommend this product to my friends.

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2 of 2 people found the following review helpful:

Below Average

Last one I'll ever buy... by nyc

Experience Level: Intermediate

Posted on 12/4/2008 from MASPETH, NY UNITED STATES

Comments: Pros: Looks cool and pretty powerful. The only true lemon I purchased in 2008. Cons: HUGE. The grating and propeller keeps flying off of mine. Yes, I would recommend this product to my friends.

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17 of 21 people found the following review helpful:

Great

big!!! by TIM STONE

Experience Level: Expert

Posted on 10/24/2008 from STEAMBOAT SPRINGS, CO UNITED S

Comments: these things are very strong but very big 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 FRANCES HUNTER

Experience Level: Intermediate

Posted on 10/12/2008 from PURVIS, MS UNITED STATES

Comments: I was really impressed with this product. I just purschase a achilles tang, and it couldn't be happier with the flow. Yes, I would recommend this product to my friends.

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0 of 1 people found the following review helpful:

Great

K8 by JAMES FEE

Experience Level: Expert

Posted on 10/4/2008 from Northlake, TX

Comments: Wow! Lots of flow. It is a bit linear, but it will push a wall of water for almost 5' in my shallow tank. Yes, I would recommend this product to my friends.

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0 of 0 people found the following review helpful:

Excellent!

flawless!!! by JASON DELPRETE

Experience Level: Intermediate

Posted on 9/26/2008 from STATEN ISLAND, NY UNITED STATE

Comments: this powerhead is by far the best on the market.gph/price/wattage.can't be beat. Yes, I would recommend this product to my friends.

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8 of 9 people found the following review helpful:

Excellent!

So far so good, improvements. by JASON ANDERSON

Experience Level: Expert

Posted on 8/27/2008 from MORENO VALLEY, CA UNITED STATE

Comments: Got this in yesterday - there is no longer a "click" noise when the powerhead turns on as with the older models, they've fixed the gap in the impeller shaft. Runs dead quiet, pushes a good soft stream of water just as the older models do - about 24 hours later and no complaints, it beats paying almost triple for a similar TUNZE. Yes, I would recommend this product to my friends.

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