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Reef Octopus Classic 90 Hang-on-Back Protein Skimmer

Reef Octopus BH90 Hang-on-Bank Protein Skimmer
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Reef Octopus Classic 90 Hang-on-Back Protein Skimmer

100% Recommend this to a friend (8 of 8)

SKU: 207849
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Quick Overview

Unique skimmer design with cylindrical body which uses the siphon to feed water to the skimmer. This reduces the load on the pump while increasing the air intake.

  • Rated for aquariums up to 100 gallons

  • Powered by Aquatrance 1000 Pinwheel Pump

  • Design reduces turbulence

  • Capable of surface skimming

  • Collection cup is easy to remove to empty
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    Previously Asked Questions

    • by Ryan on March 2, 2014, @1:24 PM

      Can this pump be put in a sump? The motor submersed in water

      Bulk Reef Supply Hi Ryan,
      If you have a sump you wouldn't want one of the HOB back versions, just the regular in sump versions. The HOB systems are designed for sump-less systems and require the water level to be near the rim of the tank its sitting on, because sumps have much lower water levels a HOB skimmer would end up out of water in a typical sump.

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    Full Details

    Reef Octopus Classic 90 HOB Protein Skimmer Manual

    Well Stocked Tank - Rated up to 75 gallons

    Medium Stocked Tank - Rated up to 90 gallons

    Light Stocked Tank - Rated up to 100 gallons

    Skimmer Features:

    • Traditional body design
    • Air silencer
    • Pump mounted externally on skimmer
    • Easily remove collection cup for cleaning
    • Solid construction
    • Control - precision output valve
    • Removable turbulence reducing bubble plate

    Skimmer Specifications

    • Body Size: 4"
    • Footprint: 7.5" x 7.5"
    • Total Height: 23.8"

    Aquatrance 1000s Pinwheel Pump Features:

    • Power Consumption: 9 Watts
    • Air Draw: 420 lph/15 SCFH*
    • Water Draw: 350 lph/92 GPH*

    *Aquarium set up will determine air and water results.


    • 2 year warranty on pump
    • 1 year on skimmer body

    Item #: OCT-BH90


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    8 Items

    • Might be the best HOB By JMS on 3/16/2015

      Best I have found for a HOB type skimmer. As close to a traditional in-sump skimmer I have tried. Quiet, easy adjustments that hold, no microbubbles.
    • Top Gun By Cleaner Wrasse on 12/24/2014

      This skimmer is mint. Fantastic build quality and super quiet. Best used with an auto top off system, however, as it's pretty sensitive to water level.
    • really impressed By chris on 11/9/2014

      I bought a skimmer from petsmart, about 150.00. It was loud, flooded the tank with bubbles. I returned it. found BRS, with the best price even when looking on Ebay..
      Only neg. I have is they don't provide any instructions at all. All they give you is the exploded view of the unit for reordering purposes.

      Good news : a child could assemble this. It started taking gunk out right away, like RIGHT away..

      It is very quiet. Well designed, skims off the top, and no micro bubble.

      however, it is very sensitive and two weeks later I am still making micro adjustments to it..
      It will fill the container with tinted water over the evening, when tuned all the way down to the bottom of the riser tube.. I come in the morning and it is bubbling at the top like crazy. Dial it down a MICRON.. One!.. and bubbles recede to middle to the tube.. then a hour later they will be at the bottom.. At the end of the day, back at the top, and have filled the collection cut with tinted water..
      So, I am still working on tuning this
    • Awesome By DC on 11/8/2014

      Works so great, keeps the water in great shape. All fish are in tip top condition!
    • Fantastic By Chad on 10/22/2014

      From the very first day this skimmer was pulling organics out of the water. My tank is brand new with only a clean-up crew and it still pulled some brown gunk out of the water. Very happy with the performance and quality and would highly recommend it.
    • Great hob skimmer By Joe on 5/6/2014

      I have this on my 30gallon reef tank . I am absolutely pleased with it I like the design feature of the hob because I don't have a sump, this skimmer is very constant for skimming one set I've haven't adjusted it again. And also is very easy to clean the collection cup and body
    • Great skimmer By Jon on 11/26/2013

      This skimmer is very powerful. I have it on my 75 gallon. It takes about 3 days to break in. If there is nasty in your water you will know it because this skimmer will start puking lots of foam.
    • Excellent By cinman on 11/16/2013

      This was my first PS and I couldn't be more pleased. Took about a day to start pulling stuff out of the tank. Super quiet and sturdy construction and Bulk Reef shipped it our very quickly. 5 star service. Thanks,,,

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