Reef Octopus

Classic 110SSS 5" Internal Space Saving Protein Skimmer

In stock
Out of stock

- +

Recommended sump water height: 7"-8"


BRS Recommended Tank Size:

  • Light Stocked - 90 Gallons
  • Medium Stocked - 65 Gallons
  • Heavily Stocked - 40 Gallons


The sleek and compact Reef Octopus Classic 110SSS in-sump protein skimmer supplies powerful filtration for aquarium systems up to 120 gallons where sump space may be limited.

  • Small Footprint - Big Performance
  • Reef Octopus Aquatrance 1000s Skimmer Pump
  • Removable Turbulence Reducing Bubble Plate
  • Disassembles for Cleaning
  • Quiet and Energy Efficient Operation
  • Latest Output Design for Quiet Bubble-free Outflow
  • Solid Acrylic Construction
  • Body Size: 5in  
  • Footprint: 6.1in x 7.87in
  • Total Height: 19.7in
  • Output Size: 1.25in


The Reef Octopus Classic 110SSS is constructed of high-quality acrylic that can be completely disassembled for cleaning. Equipped with the new Aquatrance pinwheel pump, it produces an ideal mix of water and air for optimum waste removal. A simple vented wedge valve output provides precision control and allows cleaned water to exit the skimmer below water for quiet operation. Also available in the Larger Classic 150SSS model.


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



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


pdf Owners Manual

More Information
UPC 6950291251930
Skimmer Type In-Sump / Internal
Capacity Light Bioload - Up to 90 Gallons
Medium Bioload - Up to 65 Gallons
Heavy Bioload - Up to 40 Gallons
Dimensions 6.1"L x 7.87"W x 19.7"H
Diameter 4.7" Body, 2.4" Neck
Rec. Water Level 7" - 8"
Output Size 1 in.
Air Draw 454 LPH
Flow Rate 92 GPH
Pump Model Aquatrance 1000S
Pump Rotor Type Pinwheel
Variable Speed No
Power Type AC
Power Consumption 9 Watts
Pump Included Yes
Gallons Per Hour Up to 100 GPH
Write Your Own Review
You're reviewing:Classic 110SSS 5" Internal Space Saving Protein Skimmer
Your Rating
Only registered users can write reviews. Please or

Product Questions

What cfm air pump is required? Does it need to accurately control the air flow rate?

Does it require a water pump? How many GPM on the water pump?
Question by: Douglas Goth on Jun 5, 2017, 7:58 AM
This skimmer model includes its own feed pump which is responsible for water turnover as well as air draw through venturi action. There is no need for a separate air pump or feed pump.

Have a great day!
Answer by: Zack on Jun 9, 2017, 3:57 PM
How much room is needed to remove the collection cup for cleaning? I have 21 inches of room under my stand
Question by: Dooley on Jan 4, 2017, 6:09 PM
Great question! You will need to account for 2"-2.5" for skimmer cup removal. :-)
Answer by: Randy on Jan 11, 2017, 11:55 AM
My questing regards assembly. My tank is running and I want to add a protein skimmer. My sump is in the cabinet with limited space to maneuver a tall skimmer into the sump. How much assembly is required for the Reef Octopus Classic 110SSS 5" Internal Space Saving Protein Skimmer, and is it possible to install piece by piece?
Question by: Nathan on May 18, 2016, 3:25 PM
Great question!
The skimmer is pre built from the body down, only the stand pipe and the collection cup. Feel free to let us know if you have any further questions.
Answer by: Connor on May 18, 2016, 3:29 PM
Are the reef octopus skimmers ozone safe?
Question by: Robert on Apr 17, 2016, 6:40 PM
Reef Octopus skimmers are made of 100% ozone-safe materials.
To avoid injury, you should research and take every precaution to properly inject and vent Ozone.
Answer by: Connor on Apr 25, 2016, 6:21 PM
What flow rate through the sump is best for this skimmer? I'm planning on a 600gph MAX return/overflow rate. Heard it's best to match all of these up
Question by: Joseph Collom on Mar 25, 2016, 7:09 AM
Great question!
For skimmers it is typically recommended for 10x your system volume. As low as 5x can still work will and will give slightly more contact time for any elements. Feel free to let us know if you have any further questions!
Answer by: Connor on Mar 28, 2016, 10:40 AM
I wan to run his on my 40 breeder set up is this a solid option for a mixed reef with a heavy Bioload ? Also what's he return policy? I've read a few comments saying reef octopus/ coralvue skimmers can't be returned
Question by: Jamaal on Feb 9, 2016, 2:09 PM
Great question!
The 110 is a great option and will handle a very heavy bioload on a 40 gallon. Our return policy is new and unopened boxes. If the items have been opened unfortunately all warranty and support will be through Coralvue directly. Feel free to let us know if you have any further questions!
Answer by: Connor on Feb 9, 2016, 5:54 PM