Reef Octopus Classic 150ext Protein Skimmer

Classic 150ext Recirculating Protein Skimmer

  • SKU: CLSC-150EXT

Affordable Recirculating Skimmer Rated for up to 200 Gallons

Footprint: 12.2″ x 10.4″ | Body Diameter: 6″ | Height: 25.6″ 
Powered by: Reef Octopus Aquatrance 2000s Pinwheel Pump
- Requires a 200-400GPH Feed Pump to Operate



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

The Classic 150ext 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 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.

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

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.

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

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


- Two(2) year on pump body
- One(1) year on pump rotor
- One(1) year on Skimmer Body

Reef Octopus can not be responsible for consequential damages arising from installation or use of this product. Reef Octopus warrants the pump to be free from defects in material and workmanship under normal use and conditions for the warranty period from the date of purchase.

CoralVue liability under this warranty shall be limited to repairing or replacing at CoralVue’s discretion, without charge. CoralVue will not be liable for any cost of removal, installation, transportation, or any other charges which may arise in a warranty claim.

*Reef Octopus reserves the right to change/modify this product without notice.


In-sump or external applications - Requires Feed source with a Feed Rate is 1.5-2 times the system volume.

Requires 1/2 inch of clearance to remove the cup.


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