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

94% Recommend this to a friend (15 of 16)

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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    Product Questions

    Hi, a little new here to saltwater community. I have 36 gal FOWLR tank. Current skimmer from lps has stopped working. Looking at this one. Does it require a sock or pellets or anything that goes inside other than what's included in manufactoring? Can I just set it in and plug it up? Thanks
    Question by: Karissa on Apr 5, 2016 6:57:00 PM
    You will not want to place any media or items in the bubble reaction chamber as this will be where the bubbles are formed. It can simply be mounted on your tank and be set up right away. Feel free to let us know if you have any further questions!
    Answer by: Connor (Admin) on Apr 12, 2016 4:12:00 PM
    The output tubing from the collection cup uses what size tube? I need to purchase one that's longer than what was supplied. I'm thinking like 1/4 inch but I wanted to double check and was wondering if you sell it?
    Question by: Jakob on Apr 6, 2016 9:03:00 PM
    Great question!
    This will use metric tubing however most likely you will want to measure the barb that attaches and find soft tubing in either 1/4" inside diameter or possibly you may need 3/8". Ideally you will want to check first on the unit and see if your local hardware store has soft tubing measured by inside diameter. Feel free to let us know if you have any further questions!
    Answer by: Connor (Admin) on Apr 13, 2016 3:58:00 PM
    What is the distance that this hangs off the side of the tank? i've got a 20 long, that's roughly 13" tall that sits on my dresser, and i'd like to know if this will sit on top of the dresser, or would I need to move the tank to a side so it'll hang off?
    Question by: Mitch on Apr 7, 2016 6:59:00 PM
    Great question!
    This will hang 12.6" down from the top rim of the tank. Feel free to let us know if you have any further questions!
    Answer by: Connor (Admin) on Apr 7, 2016 10:02:00 PM
    Can this pump be put in a sump? The motor submersed in water
    Question by: Ryan on Mar 2, 2014 1:24:00 PM
    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.
    Answer by: Bulk Reef Supply on Mar 2, 2014 1:24:00 PM

    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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    • the worse spent money By angel on 3/28/2016

      too complicated to adjust, super unstable, overflow problems, exes micro bubbles if you try to havea little wet skimmate.. brings a hole in the top of the elbo 90 degree return that splashing all around, if you replace the sock gets out a lot of bubbles and takes days to start to get something ... very bad !!!! if you want to be happy, stay away from this piece of junk
    • Hands down, best HOB on the market By Brian on 3/17/2016

      I was running a Reef Octopus 1000 classic on my wife's seahorse tank, and it just wasn't pulling a lot of skimmate out. Swapped it out with this bad boy, and I'm emptying the cup every 3 days or so. Super job at keeping nitrates down in the tank, right around 5 ppm or so. Anyone who knows how difficult that is for a seahorse tank should be VERY impressed with how well this skimmer functions.
    • This thing is better than free ice cream By The Nitrate King on 11/24/2015

      My 65 gallon was mucky. This very quiet and extremely efficient skimmer picks up the darkest skim crud ever. Collect them all!!!
    • Excellent By NewtoReefing on 8/30/2015

      Replaced my Remora HOB with this beast. I am battling an outbreak of hair algae that will not subside despite all the measures I have tried. Decided to replace my skimmer.
      Absolutely love the amount of skimmate produced. The break in period was literally 4 days. The skimmer is quieter than my prior skimmer. I ran both skimmers for 1 week just to compare. This out performed the Remora 5:1. Definitely recommend.
    • great skimmer By JD on 8/22/2015

      !st hob skimmer - worked great from the start
    • Works well By Shawn O on 7/13/2015

      This skimmer works pretty well. As it's my first and only skimmer, I have nothing to compare it to, so.... I'm giving it a 5 because it does pull out crud from the water without making a lot of noise.. It only took about 3 days to break in. If I set it just right, I get dark skimmate. If I set it just a hair either way I get slightly tinted water or nothing but crud inside the cone. I'm running this in a 55 FOWLR with 6 fish. I think it would pull out more crud if I took my aquaclear 70 offline.
    • Fantastic By Tim dogg on 6/6/2015

      I have this unit on another tank and I love it. The best HOB skimmer out there. BRS had the best price and quickest delivery. Customer for life
    • Very good product By JT on 4/4/2015

      skims great from the start
    • 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!

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