Reef Octopus Classic 90-HOB (Hang-on-Back) Protein Skimmer

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Classic 90-HOB Protein Skimmer


  Footprint: 7.5″ x 7.5″
  Body Diameter: 4″
  Height: 23.8″


  •   Cylindrical Body Design
  •   Reef Octopus Aquatrance 1000s Skimmer Pump
  •   Traditional Style Collection Cup w/ Drain
  •   Pump Mounted External to the Skimmer
  •  Turbulence Reducing Bubble Plate
  •   Easy to Remove Collection Cup
  •   Air Silencer
  •   Precision Control Output Valve
  •   Solid Acrylic Construction

The ultimate in Hang-On-Back Filtration.

 A totally different approach to hang-on-back skimmer, the Reef Octopus Classic 90 HOB skimmer has a cylindrical main body and is capable filtering aquariums up to 130 gallons. The Classic 90HOB intake device skims the top of the water surface removing the organics and ugly oil buildup from the water surface that would otherwise accumulate and hinder light penetration.

 A cylindrical reaction chamber, the bubble chamber and conical body to neck transition all help manage the air gently and reduce turbulence to provide stable filtration performance. The unit is very easy to be set up and even easier to operate.

Filtration Handling

  • 130 gallon – Light Filtration Demand
  •  80 gallon – Medium Filtration Demand
  •  60 gallon – Heavy Filtration Demand

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