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Home » Saltwater Aquarium Supplies  » Protein Skimmers  » In-Sump Skimmers  » Venturi Needle Wheel  »  AquaMaxx ConeS CO-Series In-Sump Protein Skimmers
AquaMaxx ConeS CO-Series In-Sump Protein Skimmers

AquaMaxx ConeS CO-Series In-Sump Protein Skimmers

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AquaMaxx ConeS CO-Series In-Sump Protein Skimmers Information

Product Manuals & Documentation

AquaMaxx ConeS In-Sump Protein Skimmer

AquaMaxx ConeS Series In-Sump Protein Skimmers efficiently remove organic waste from aquarium water. With an advance bubble chamber design that features numerous conical diffusers, the turbulence in the reaction chamber is reduced and a stable laminar flow is achieved to maximize efficiency and performance.

Achieve a stable laminar flow and maximize efficiency!

In conjunction with the innovative bubble chamber, a powerful needle wheel pump generates optimally-sized air bubbles that force protein, waste and other materials through the hybrid cone body and into a collection cup for easy removal. The AquaMaxx ConeS Series is rated for aquariums 175-500 gallons yet are small enough to be concealed in a sump underneath your aquarium.

Computer-precision engineered and outfit with the latest filtration technology, AquaMaxx protein skimmers are engineered to deliver the performance and value you are looking for in a skimmer.

AquaMaxx ConeS Series Skimmers are built using a brilliantly polished cell-cast acrylic. They incorporate the high-end features hardcore hobbyists demand at a price everyone can afford. The ConeS Series is equipped with advanced bubble chambers, hybrid-cone bodies, air silencers and needle wheel impellers for maximum performance, efficiency and whisper quiet operation. They also have compact footprints to make installation as easy as possible.

AquaMaxx ConeS Skimmers feature custom Italian-made Sicce pumps with special needle wheel impellers to whip up large amounts of air with optimum bubble size. These pump and protein skimmer combinations deliver unprecedented performance and reliability. Aquarium waste will be vigorously removed from your tank so you can focus less on maintenance and more on enjoying your piece of the reef.

AquaMaxx Cone-Series Protein Skimmers are designed from the ground up with the hobbyist in mind. A built-in air intake silencer reduces noise for near-silent operation. The hybrid-cone design maximizes the size of the reaction chamber and to allow the skimmate to smoothly rise into the collection cup. The advanced Bubble Chamber decreases turbulence and produced a stable laminar flow: which improves bubble transition and boosts skimmer performance.

  • Filtration Rating: up to 175 Gallons (light bioload) or 90 Gallons (heavy bioload)
  • Footprint: 6.3" x 8.7”
  • Height: 19.7”
  • Chamber diameter: 5”
  • Outlet size: 1” Quick-Precise adjustment valve
  • Pump (included): SHARK 1.5
  • Water Flow Rate: 1800 l/Hr
  • Air Intake: 360 l/Hr
  • Pump power consumption: 16 watts
  • Recommended Water Leve: 9.5”
  • Requires approximately 1/2" of clearance to remove collection cup.
  • *Do not over tighten collection cup as damage may result.
  • Efficient, durable and reliable
  • Simple to set up and operate
  • Cell-cast acrylic construction
  • SCH80 fittings
  • Quick-Precise adjustment valve allows fast precision tuning of the skimmer water level to control wet/dry foam production
  • ShockMaxx rubber feet isolate noise and reduce vibration.
  • Italian-Made Sicce needle-wheel pump produces optimum bubble size for high-efficiency protein skimming.
  • Buffer chamber maximizes contact time allowing skimmate to move smoothly into the collection cup.
Model Item # Tank Size Height FootPrint Pump Chamber
CO-1 UJ00154 90-175 Gal 19.7" 6.3" x 8.7” SHARK 1.5 5"
CO-2 UJ00155 160-300 Gal 22.1" 7.1" x 14.2”
or 9.1 x 12.6
SHARK 2.0 6"
CO-3 UJ00156 270-450 Gal 22.9" 12.3" x 14.2” SHARK 3.0 8"
CO-5 UJ00159 350-600 Gal 22.9" 16.6" x 13.8"
or 20.1" x 10.7"
SHARK 6.0 10"
CO-6 UJ45145 500-800 Gal 22.9" 16.6" x 18.2"
or 22.1" x 12.6"
SHARK 7.0 12"
All AquaMaxx products are backed by’s 60-day return policy and carry one-year manufacturer warranties. Each skimmer will include detailed instructions and diagrams to help hobbyists get up and running immediately.

Manufacturer Info

AquaMaxx is a Southern California-based aquarium supply company that entered the market in mid-2008 with a line of affordable metal halide bulbs. The brand quickly gained recognition as word spread about the high quality and low cost of their lamps. In 2009, AquaMaxx released a line of aquarium filter socks and, in early 2010, unveiled an assortment of high-performance protein skimmer accessories and upgrades.


AquaMaxx Limited Manufacturer Warranty
AquaMaxx will warrant all AquaMaxx products to be free from manufacturing defects for one year from the original purchase date when purchased through an authorized AquaMaxx retailer. This warranty does not cover any damages caused by misuse, neglect, alterations or improper handling/transport/maintenance/installation. AquaMaxx does not cover personal injury, personal loss, or other damages associated with the use of these products.

AquaMaxx ConeS CO-Series In-Sump Protein Skimmers Reviews

Average Rating
(26 reviews)
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of 3

Awesome skimmer

Reviewers Rating Excellent!

Posted: 9/8/2015 from CO
5.0 5
Experience Level: Intermediate

Comments: I bought a co-2 in feb of 2014. It has been like 18 months now and it has performed flawlessly pumping out nasty black skimmate when I have it dialed in. I've been fighting dinos for the past year so you can imagine the nasty crap that has passed thru the skimmer. If it was feasible - I would pull it out of the sump and sleep with it every night.The first best was an early 90's hi-dollar custom setup built into a sump with ozone.

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CO 1

Reviewers Rating Excellent!

Posted: 8/22/2015 from ATTICA, NY UNITED STATES
5.0 5
Experience Level: Intermediate

Comments: After my skimmer arrived with broken legs from shipping, Marine Depot asked for photos and Shipped me a new base within a week. After a break from the hobby due to moving around I'm back at it. I went from a single 55 gal with a HOB cpr backpak skimmer; to using the former 55 gal as my sump and bought a new one for the display. The co-1 is a vast improvement as you can imagine and I am very happy with it. Over the last few weeks of my gulf live rock curing I've had to empty the cup every day. It pulls dark skimmate out every day. Now I'm cleaning every two days with the curing process wrapping up. I have it zip tied to a 4.5 inch tall clay pot bought new. The operating level is 9 inches with that. I am very happy with this skimmer and would highly recommend for total volume of up to 90 gallons. My system is about 77 gallons with the rock displacement.

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Amazing Skimmer!!!

Reviewers Rating Excellent!

Posted: 5/16/2015 from OXFORD, PA UNITED STATES
5.0 5
Experience Level: Intermediate

Comments: After 7 days in my sump, I had never seen so much skimmate coming out of my tank. If you have a small sump, this is the one, it has a small footprint but it works like a champ. definitely worth the money.

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Great product

Reviewers Rating Excellent!

Posted: 5/10/2015 from IRAPUATO, MEXICO
5.0 5
Experience Level: Beginner

Comments: This is my first skimmer but if i compare to my brothers skimmer he has a octopus i think this is better

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Excellent Skimmer

Reviewers Rating Excellent!

Posted: 5/2/2015 from LITTLE ROCK, AR UNITED STATES
5.0 5
Experience Level: Expert

Comments: I've tried many different skimmers on different tanks over the years. When I had a smaller tank, I had used an Aquamaxx HOB skimmer which I really liked so when my LifeReef skimmer quit on me after 3 yrs of use in my main tank, I wanted to try this. I could not be happier. I'm getting much more skimmate than before. It's quiet. It's super easy to clean, especially with the twist off top with handle. It skimmed immediately without much work in period. I liked this one so much, I'm replacing my Reef Octopus in another tank with one of these as well.

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great skimmer

Reviewers Rating Excellent!

Posted: 4/19/2015 from ELDRIDGE, IA UNITED STATES
5.0 5
Experience Level: Expert

Comments: Got these skimmer for a new 93 cube built quality is great great price couldn't ask for more in a skimmer

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Excellent Skimmer

Reviewers Rating Excellent!

Posted: 3/22/2015 from BALLWIN, MO UNITED STATES
5.0 5
Experience Level: Expert

Comments: Works like a champ. I needed to replace my 20+ year old skimmer(Finally stopped working) and researched a lot to make the right decision. Changed the location in my sump due to everything I read regarding constant water level being a plus/must (I don't have auto top off) I put it in the middle of my sump where the refugeium was (Working on that) but it was the only place my water did not change. 10-inches deep, I built a one-inch platform to sit it on, cleaned my sump first time in forever! and it works like a champ. I really like how the water discharges under water so I don't have the splashing my old unit produced discharging above the water line. Quality build, I would recommend this product to anyone. Using it on my 120 mixed reef with a 40 breeder as my sump.

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Very Good Skimmer

Reviewers Rating Great

Posted: 3/16/2015 from YPSILANTI, MI UNITED STATES
4.0 5
Experience Level: Intermediate

Comments: The skimmer works very well, is easy to adjust, and is quality made. The one thing about this skimmer that annoys me (and that way with many skimmers) is that there are areas of the skimmer that are very difficult to clean, no matter what kind of brush that you have to work with. My favorite part of the skimmer is the easy adjustment knob. Overall, the skimmer can pull out enormous amount of stuff.

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Reviewers Rating Excellent!

Posted: 2/15/2015 from Kansas City, MO UNITED STATES
5.0 5
Experience Level: Intermediate

Comments: I purchased two (2) of the Cone CO-3 skimmers to replace a couple of Skimz SM251's (garbage - the pumps fail and impellers crack after a couple of months - someone should report Skimz to the U.S CPSC) The CO-3's are much more reliable and far more efficient. Break-in time only took about 48 hours, and the CO-3's are so easy to fine tune. Best skimmer on the market

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Best I've had

Reviewers Rating Excellent!

Posted: 1/31/2015 from MADISON, MS UNITED STATES
4.5 5
Experience Level: Intermediate

Comments: I replaced my BM Curve 5 with this and I'm very pleased with the results. It's got the Sicce pump which takes one of the biggest worries out of the equation. Not sure how well those bubble diffusers help, but it skims better than the BM did on my 46/20 setup. The only thing I would add is redesigning the cup to make it easier to clean. You need small impeller type brushes to get into the nooks and crannies of the cup. Overall, I love this skimmer.

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