Reef Octopus Classic 150INT 6” Internal Protein Skimmer

Reef Octopus Classic 150INT 6” Internal Protein Skimmer
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  • Reef Octopus Classic 150INT 6” Internal Protein Skimmer
  • Reef Octopus Classic 150INT 6” Internal Protein Skimmer Collection Cup
  • Reef Octopus Classic 150INT 6” Internal Protein Skimmer Pump
  • Reef Octopus Classic 150INT 6” Internal Protein Skimmer Bubble Plate
  • Reef Octopus Classic 150INT 6” Internal Protein Skimmer Chamber
  • Reef Octopus Classic 150INT 6” Internal Protein Skimmer Chamber Close Up

Reef Octopus Classic 150INT 6” Internal Protein Skimmer

97% Recommend this to a friend (90 of 93)

SKU: 204062
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Quick Overview

  • Manufacturer rated for tanks up to 150 gallons

  • BRS recommended for tanks up to 120 gallons

In sump skimmer. Powered by Aquatrance 2000 pump with an improved venturi design and pinwheel impeller. Built with high quality acrylic. Gate valve allows for more precise control of water level. ½” clearance required to remove collection cup for easy cleaning.


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Product Questions

Would this fit in a 10" x 10" square space if turned diagonally?
Question by: Mike on Mar 29, 2016 12:54:00 PM
Great question!
Unfortunately the skimmer pump which is mounted to the outside would get in the way of the wall of the 10x 10 area. Feel free to let us know if you have any further questions!
Answer by: Connor (Admin) on Mar 30, 2016 11:57:00 AM
What is recommended water depth for this skimmer?

Question by: Mke on Jan 26, 2016 8:11:00 PM
Great question!
The skimmer will need 7-9 inches of water. Feel free to let us know if you have any further questions!
Answer by: Connor (Admin) on Feb 3, 2016 5:04:00 PM
Would this skimmer fix in a trigger system ruby cube
Question by: Darrell Booker on Apr 26, 2016 12:26:00 PM
Great question!
This would be a tight fit and with the pump not work, or make noise on the wall. Ideally the Classic 150SSS would be the best fit.
Answer by: Connor (Admin) on Apr 26, 2016 2:31:00 PM
Hello, I was curious how tall of a space this skimmer would need to be in? I have about 27 inches to work with and I'm nervous that the space would possibly be too tight for me to take the cup out. Thank you so much!
Question by: Natasha Lutz on Apr 3, 2016 7:47:00 PM
Great question!
This skimmer has a height of 22.13" and will work fin in a 27" high sump area as you will only need a few inches to remove the cup. Feel free to let us know if you have any further questions!
Answer by: Connor (Admin) on Apr 6, 2016 6:02:00 PM

Full Details

Reef Octopus Classic 150 Manufacturer's Manual

  • Reef Octopus 6" Classic 150INT Skimmer CLSC-150INT
  • Dimensions: 12" x 8.5" x 22.13"
  • Manufacturer rates skimmer for tanks up to 150 gallons.
  • BRS Recommends this skimmer for tanks up to 120 gallons Powered by 1 Aquatrance 2000 pump at 500 GPH
  • High performance venturi air injection system
  • Modified cone neck design designed for easy transition of micro bubbles into cup
  • Precision controlled gate valve
  • In sump only
  • 1 year warranty on skimmer and pump
  • Metric plumbing parts.



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  • Pretty good unit By Billy on 5/6/2016

    Easy to set up. Quiet and pretty powerful. Only issue is that I guess it takes weeks to "break in" new skimmers and it overfills and then sometimes never reaches the top but since I'm still in that breakin period I can't fault this unit. Someone said if you soak it in vinagerfirst you shorten the breakin period.
  • Good skimmer for the price By Klwheat on 4/22/2016

    It's bigger than I expected...but that's what I wanted. I have it in a 90 gallon mixed reef with 30 gallon sump that I feed decently. Took about a week to break in and get it dialed in, but it's skimming great now.
  • Not to happy with it By Mason on 1/21/2016

    After my skimmer bit the dust I read the reviews on this skimmer and decided it sounded like a good one but boy was I wrong. I have it on a 75 gallon tank with a sump that holds about 15 gallons. I can't get this thing to skim one bit I have had it for about 4 weeks now and I am ready to throw it out the window. I have tried raising it from 8.5" to 6.5" and also raised and lower it inside the skimmers cup nothing seems to work. I know there is plenty to be skimmed out because because my old skimmer was constantly skimming. I rated it 2 stars because it at least turns on.
  • Love it By Carl on 9/30/2015

    Once I had it broke in it is doing a great job. Had to raise it up to the correct water level. I used a hard plastic grate cover found in the plumbing department at Lowe's. It cost a little more than the lighting grated recommended but it worked better for my needs and I didn't have to worry about floating problems. It is doing a great job and my water is clear. I have a92 gal. tank.
  • great skimmer By kris on 8/24/2015

    One of the best skimmers I have owned
    Been set up for almost 2 weeks and it has pulled all sorts of skim from my tank.
    Easy to set up clean and maintain
    Definitely a good skimmer for the price
  • Best bang for the buck. By arkangel on 7/10/2015

    Had this skimmer 2 weeks now, We think for the money its well worth it. On our 75 its doing a great job. Seems to be well built as well.
  • Love it By Lynn52 on 5/6/2015

    I bought this for my 125 gallon mixed reef tank. It worked great from day one. Minimal break in period. This is the first good skimmer I have ever had.
  • Great skimmer By Russell on 5/4/2015

    I have had this skimmer for almost a year. It's quiet and seems to do a good job. I removed the pump the other day and I think that i may not have tightened it up completely because it started rattling after a few hours. I shut it down, then deep cleaned the pump the next day. After that it has been working just as before. I would definitely recommend this skimmer.
  • Awesome By Zallman on 4/19/2015

    This skimmer Is great! Upgraded from my hob reef octopuss bh2000 witch was also great! This thing took about a week to break in i have it in 10inches of water no micro bubbles pulling gunk like a champion will always trust reef octopuss!
  • WORKS AWESOME By ty on 3/17/2015

    Very Impressed, well built,easy to put together, making nasty water 1st day. Best $230 bucks I ever spent on a bubble machine!! lol Great Product!
  • What a GREAT Skimmer!! By Jarrod on 3/8/2015

    I did a lot of research on the internet and YouTube to find the best skimmer for my 135 gallon aquarium. This skimmer is AMAZING and started to produce skim immediately after setup. I love it!!!
  • it's a beast By junior on 2/25/2015

    It's my first skimmer but I feel like I done plenty of research on all types and brands. Immediately after setting it up it started working great. Unfortunately it had a minor leak on the neck wich will be replaced. If one thing is for sure is that brs backs there products all the way.

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