• Classic 150ext Recirculating Protein Skimmer
  • Classic 150ext Recirculating Protein Skimmer
  • Classic 150ext Recirculating Protein Skimmer
Reef Octopus

Classic 150ext Recirculating Protein Skimmer

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As one of the Reef Octopus Classic Series skimmers, this 150ext is a recirculating external protein skimmer that will provide great performance with the enhanced control for marine aquariums up to 200 gallons.

The Classic 150ext is handcrafted of high-quality cast acrylic, o-ring sealed union pump mount, bubble diffuser with the performance provided by the efficient Reef Octopus Aquatrance 2000s Skimmer Recirculation Pump.

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.

Note: This skimmer requires additional plumbing and feed pump with the suggested feed rate of 1.5-2 times the total system volume.

Bioload Handling

The bioload of an aquarium refers to its ability to process waste in proportion to tank volume. Protein skimmers work best when properly matched with the bioload of the system.


  • HEAVY - 120 Gallons
  • MEDIUM - 160 Gallons 
  • LIGHT - 200 Gallons

Key Benefits found on the Classic 150ext 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 2000s recirculating pinwheel pump
  • Solid Acrylic Construction

Technical Specs

Body Size: 6in
Footprint: 12.2in x 10.4in
Neck Size: 3in
Total Height: 25.6in
Output Size: 40mm/1.25in PVC
Output Height:
Inlet Size: 1/2in union/ 5/8 barb
Max Feed Rate: 520GPH

The Reef Octopus Classic 150ext protein skimmer uses high-grade metric plumbing parts and includes US standard plumbing adapters for ease of installation.

Pump Information

Reef Octopus Aquatrance 2000s Pinwheel Pump
Max Flow: 198gph
Max Air: 720L/H, 25.2SCFH
Power Consumption: 18watts
Dimensions: 5.3" x 2.8" x 5.7"
*Air and water results will vary depending on aquarium setup


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