The Pinnacle of Hang-On-Back Filtration

The Reef Octopus Classic 90 HOB skimmer is totally different approach to HOB skimmers as it has a cylindrically main body and is capable of filtering aquariums up to 130 gallons. The Classic 90HOB intake device skims the top of the water surface removing the ugly oil buildup and organics 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 reducing turbulence providing stable filtration performance. Best of all the Classic 90HOB is very easy to be set up and easier to operate.

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.

(EXCLUDES SUMP)

• Heavy
• Medium
• Light

• 60 gallons
• 80 gallons
• 130 gallons

Classic 90HOB Features

• Cylindrically 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

Technical Specs

Body Size: 4in
Footprint: 7.5in x 7.5in
Total Height: 23.8in

Pump Information

Reef Octopus 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