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Reef Octopus Classic 110 Space Saver Protein Skimmer


Starting at $23/mo with . Learn more

Item #: CV25140

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Innovative and Affordable Filtration

The NEW sleek and compact Reef Octopus Classic 110 SS In-Sump Protein Skimmer supplies powerful filtration for aquariums up to 130 gallons and easily fits in most space limited installations. Can be completely disassembled for cleaning. The new Aquatrance pinwheel skimmer pump produces an ideal mix of water and air for optimum waste removal. Easy of control with its vented wedge valve output for precision control and quiet operation. Latest output design allows cleaned water to exit the skimmer below water for quiet operation.

Internal model designed for in-sump use only. No feed pump required, skimmer draws water directly from sump.


  • Small Footprint - Big Performance
  • Removable Turbulence Reducing Bubble Plate
  • Disassembles for Cleaning
  • Quiet Operation
  • Latest Output Design for Bubble-Free Cleaned water
  • Solid Construction

Filtration Handling

  • 130 Gallon – Light Filtration Demand
  • 90 Gallon – Medium Filtration Demand
  • 60 Gallon – Heavy Filtration Demand

Techinical Specs

  • Body Size: 5"
  • Footprint: 6.1" x 7.87"
  • Total Height: 19"
  • Output Size: 1.25"
  • Note: Recommended Sump Water Depth: 7"-8"

Pump Information

  • Aquatrance 1000s Pinwheel Pump
  • Wattage: 9w
  • Air Draw: 420 lph / 15 SCFH*
  • Water Draw: 350 lph / 92 GPH*
    *Air and water results will vary depending on aquarium setup
  • Warranty - 2 year manufacturer’s warranty on pump/1 year on rotor/impeller and 1 year on skimmer body

5 Stars


Reviewed on
December 21, 2020

No, I would not recommend this.

Pump broke after 30 seconds

The build quality seems great. however, the instructions on how to assemble skimmer is really lacking. After assembling the unit, I put iit n my sump and turned it on. The skimmer ran fine for about 30 seconds than stopped. I had to tear down the skimmer. I opened the pump and found the impeller shaft had broken. I have a customer service request with the manufacturer through email. I tried to call the manufacturer, but I cannot get a person through their automatic system. I believe a quick conversation would result in me getting the correct parts. I know they will send me some parts, but I wish I could actually talk to someone. I will update this review when I get the skimmer functioning.

Was this review helpful? 1 0


Reviewed on
September 09, 2020

Yes, I would recommend this.

Great For 70 Gallon

Pros: Awesome protein skimmer

Cons: Collection cup is a little tedious to remove

I was thinking about getting the regular size one, and I thought that might be a little tight so I went with this one. Works great!

Was this review helpful? 1 0


Reviewed on
April 03, 2020

Yes, I would recommend this.

Great product for a tight fit.

Pros: Compact

I had height restrictions and the second hand skimmer I got fit but would never be able to come out of my stand. This made me a bit uneasy in case of failure. I decided to sell it and pick this one up. It may not be as powerful but it fits, can be serviced, and does what I need it to do!

Was this review helpful? 1 0


Reviewed on
June 16, 2019

Yes, I would recommend this.

Great Skimmer

Pros: Runs Quiet, Easy Install, Small Footprint

Cons: None

Just added mine to my Reefer XL 425. Took a couple days to break in and I had to set mine on a stand because my sump is a bit deeper than the recommended 7-8 inches, but it is a beast and I have no micro bubbles escaping. While it was breaking in it was so quiet I could hear the bubbles popping.

Was this review helpful? 2 0


Reviewed on
April 15, 2019

Yes, I would recommend this.

Great but

Pros: Works great and is very quiet

Cons: Collection cup is very hard to remove

Put together fairly fast and within minutes in sump it started producing the brown scum and is very quiet too. I would give it 5 stars but removing the collection cup is a real pain and messy. Maybe it will get easier in time but right now I dread taking it off!

Was this review helpful? 0 1


Reviewed on
May 20, 2018

Yes, I would recommend this.


Pros: Excellent build quality. Looks good. Works very well.

Cons: Microbubbles

I’ve owned many protein skimmers over the last 10 years. This skimmer even after 1.5 months is still producing Microbubbles that get into the display. All skimmers go though a breakin period, but this is very excessive. The build quality is very good and putting it together was very straightforward. I would give it 5 stars but the bubbles are annoying. They are slowly disappearing and I assume by the 2 month period they will finally be gone.

Was this review helpful? 2 0


Reviewed on
April 07, 2018

Yes, I would recommend this.

very decent

Pros: Ease of use, plug and play

Cons: removal of collection cup is difficult.

This skimmer is quick to assemble skims well has low noise and has a rapid break in time of approx 5-6 hours. Excellent skimmer for the money. Instructions for assembly could be better. The reason it gets four stars if for the difficulty removing the collection cup. Not a big deal but something to think about prior to purchase. I was so impressed with this skimmer I bought an upgrade by RO soon after.

Was this review helpful? 1 0


Reviewed on
November 05, 2017

Yes, I would recommend this.

Good skimmer

Pros: Works really well

Cons: The plastic isn't very strong on a vital part.

It took awhile to break in but now that it has it works well. However when I put the airline into the pump adapter the little nozzle broke off with hardly any force being applied while putting it on. I was able to superglue it back on but I'll definitely have to replace that part in the future.

Was this review helpful? 1 0


Reviewed on
May 04, 2017

Yes, I would recommend this.

Awesome Product

Works very well and takes up almost no space! It's equally as tall as the 40 gallon sump that it's in.

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Reviewed on
January 05, 2017

No, I would not recommend this.

Not that great

Pros: Good small compact size.

Cons: Over priced and doesn't work that great

Instructions were horrible. Broke skimmer in like recommend. Is impossible to get it tuned in right. Will not produce a dryer skim. Only ever seems to produce a really wet skim. Tried many different water levels to see if I could get it tuned in better but had no luck. Wouldn't recommend this skimmer to anyone. Looking into other brands of skimmers.

Was this review helpful? 0 0

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