Reef Octopus Classic 152-S 6" Internal Protein Skimmer

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Reef Octopus Classic 152-S 6" Internal Protein Skimmer

88% Recommend this to a friend (7 of 8)

SKU: 209567
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Quick Overview

This Reef Octopus Classic Skimmer is constructed of high-quality cast acrylic that disassembles completely for cleaning. Its unique Super Cone "wine glass shape" body naturally stabilizes and concentrates the organic rich foam as it rises producing an enhanced foamation.

Fully equipped with a Reef Octopus Aquatrance 1800s pinwheel pump to produce the perfect mix of water and air for optimum waste removal.


Two(2) year on pump body

One(1) year on pump rotor

One(1) year on skimmer body


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Product Questions

Would this work with a mixed reef heavy bioload 125 gallon?
Question by: Brenden on Jun 8, 2016 8:07:00 PM
This skimmer could work on a lighter bio-load 125. However with a heaver load we recommend a larger skimmer closer to 200 Gallon rated bio-load.
Answer by: Connor (Admin) on Jun 9, 2016 6:50:00 PM
Would this work on a 90 gallon mixed reef with a heavy bioload?
Question by: TJ on Apr 19, 2016 6:57:00 PM
Great question!
This will work well with a 90 gallon tank. Feel free to let us know if you have any further questions!
Answer by: Connor (Admin) on Apr 26, 2016 12:49:00 PM

Full Details

Owners Manual


BRS Recommended Tank Size:

  • Light Stocked - 200 Gallons
  • Medium Stocked - 140 Gallons
  • Heavily Stocked - 90 Gallons 


The Reef Octopus Classic 152-S is an in-sump protein skimmer capable of providing powerful filtration for aquariums up to 150 gallons where sump space may be limited.

  • Refined Filtration at an Affordable Cost
  • Compact Footprint
  • Ultra-efficient Aquatrance 1800s Pump
  • In-Sump Application
  • Turbulence Reducing Super Cone Body
  • Solid Cast Acrylic Construction
  • Bubble Dispersant Plate
  • Precision Control / Bubble Free Output
  • Efficient & Quiet Operation
  • Disassembles for Easy Cleaning & Maintenance
  • Super Cone Body Size: 6 to 3.5in
  • Footprint: 10.4in x 8.1in
  • Neck Size: 3.15in
  • Total Height: 20.7in
  • Output Size: 40mm / 1.25in

Recommended Sump Water level: 5-8 inches


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8 Items

  • Works great By Ed on 3/20/2017

    Functions best when used with an auto topoff system. If the water level drops or raises(like with most in sump skimmers) it wont skim properly while water is higher or lower than what it was when it was dialed in. Has to be one of the best skimmers ive owned so far. When used in conjunction with an auto topoff and a drain hose there is no issues unless i forget to empty the about adding the cleaning blade option.
  • This skimmer kicks ass By Cal on 3/13/2017

    Bought this skimmer for my Reefer 170 tank. Within one week of running it started skimming like crazy. Super quite. Very easy to adjust bubble level. The fit and finish of it is amazing. I hihgly recommend.
  • Great skimmer By Lump on 3/7/2017

    This has been great for me in the sump of my red sea reefer with 65 gallons of water in the tank and sump ( less live rock)
  • Skim this Review By Dgebo on 2/21/2017

    Purchased the Reef Octopus 152S for my 90 gallon aquarium after a lengthy discussion with the BRS support staff. The staff at BRS were great at listening to my situation and recommending the RO Skimmer over the "other brand". Setup was relatively easy (after watching a few You Tube Videos. (Thanks Ryan). Spent a couple of days dialing it in and now it is off and running perfectly. Amazing to see the skim being removed. Very quiet operation and looks very cool sitting in the sump bubbling away. Almost makes me want to keep the doors open to my sump just to show it off. Great product at a reasonable price. Hopefully, writing this review doesn't jinx me!
  • I'd buy another By Michael on 2/11/2017

    Bought this based off a recommendation from a friend, couldn't be happier. Ran it for 2 weeks wide open to break the pump in. Raised it up about 3.5 inch and it's doing some serious work. I'd buy another no question.
  • Works great By Mik on 10/6/2016

    Works great
  • Best Bang For your Buck By Ty on 9/14/2016

    I do aquaculture for a living at a research institute. I have three skimmers, the Skimz Monster 252 external, the Vertex Omega 180i, and this one. The Classic 152-S is simple, cheap and effective. Not as sturdy as the Omega 180i but the gate valve makes it much easier to tune than the vertex. If I had a tank at home, this is what I would use.
  • Not good By Jason on 3/8/2016

    Simply doesn't work, I have tried everything, raising, lowering, waiting, adjusting, tweaking, waiting. Nothing helps, maybe mine is defective. ... I don't know, I'm ready to throw it in the street.