Reef Octopus CLSC-110EXT External Protein Skimmer

Reef Octopus CLSC-110EXT External Protein Skimmer



As one of the Reef Octopus Classic Series skimmers, this 110ext is an recirculating external protein skimmer that will provide great performance with the enhanced control for marine aquariums up to 130 gallons.


The Classic 110ext is hand crafted of high quality cast acrylic, o-ring sealed union pump mount, bubble diffuser with performance provided by the efficient Reef Octopus Aquatrance 1000s Skimmer Recirculation Pump.  Built with high-quality acrylic. Wedge pipe output allows for more adjustment of the skimmer compared to ball valves. ½” clearance required to remove collection cup for easy cleaning.


Powered by an Aquatrance 1000 pump with an improved venturi design and pinwheel impeller. The skimmer features a recirculation mounted pump with a precision gate valve for optimizing the water level within the protein skimmer. The collection cup has a quick release neck for easy removal for cleaning.


Key Benefits found on the Classic 110EXT Skimmer

  • Recirculating Design enhances performance and control
  • Bubble Diffusing Chamber and Hybrid Body that naturally reduces and stabilizes the foam production; This means less turbulence in the neck area and more contact time for organics to rise and collect
  • Oversized Air Silencer for quiet operation and airline mount
  • Collection Cup with flow directional guide, drain and unit venting
  • Precision Control with the easy to turn output flow valve
  • Efficient Performance with the Reef Octopus Aquatrance 1000s recirculating pinwheel pump


Note: A feed pump is required that can flow around 1.5 - 2 times the volume of the system. We suggest a pump around 150 to 250 GPH, and particularly like the VarioS 2 Controllable DC pump or Sicce Syncra Silent 2.0, we also highly recommend a gate valve to help control and fine-tune the flow of water into the skimmer from the feed pump.


Skimmer Specifications:

Footprint - 10.4" x 9.25"

Height - 22.8"

Heavy Bioload (Most Common) - 65 Gallons

Medium Bioload - 100 Gallons

Light Bioload - 130 gallons

  • Body Diameter: 5"
  • Neck Size: 2.5"
  • Foot Print: 10.4" x 9.25"
  • Total Height: 22.8"
  • Output Size: 40mm - 1.25”
  • Inlet Size: 1/2"


Aquatrance 1000s Pinwheel Pump Features:

  • Air Draw: 420 L/H*
  • Power Consumption: 9W

*Aquarium set up will determine air and water results.


What's Included?

  • Classic 110EXT Protein Skimmer
  • Aquatrance 1000s Pinwheel Pump
  • Output Gate Valve
  • Metric to Standard Adapter

    (888) 325-1223

    Rocky Mount, NC, USA

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