Reef Octopus 2000 HOB (Hang-on-back) Skimmer

Reef Octopus 2000 HOB Skimmer for Serious Reef Filtration

The Reef Octopus 2000 HOB Skimmer elevates nutrient control for tanks seeking steady, reliable export power. Reef keepers who browse Reef Octopus under Filtration & Skimmers equipment often search for efficient hardware, and this model stands out in the All Skimmers selection thanks to its slim build and strong processing capability.

Streamlined Hang-On Performance with the Reef Octopus 2000 HOB

The Reef Octopus Hang-On The Back Skimmer design slides neatly behind most tanks while keeping equipment out of sight. In the Hang-On the Back Skimmers collection, it remains one of the strongest performers for tanks up to 200 gallons across lighter bioload setups.

This model uses an external Aquatrance pump to reduce heat exposure inside the display, and its surface draw inlet targets film and waste before they settle. Water stays clearer, and organic buildup stays low, which always helps stability in mixed reef and SPS systems.

How the Reef Octopus 2000 System Keeps Tanks Running Smoothly

This system focuses on reliable oxygen exchange and steady foam fractionation, so aquariums maintain cleaner water without clog-inducing designs. Additionally, the pinwheel impeller pulls in strong air volume to fuel dense foam and consistent skimmate production.

Key benefits include:

• External pump design for cooler display temperatures

• Surface skimmer plate for improved waste collection

• Clear acrylic housing for fast visual maintenance checks

• Quiet air draw thanks to an integrated silencer

• Easy-access cup and drain port for quick cleaning

Many reef keepers pair this skimmer with Aquarium Filters for mechanical polish and stability. You will also find similar flow-supporting options in Box & Hang-On Back Filters, which complement this skimmer nicely for additional particulate removal.

Tank Capacity and Sizing Guidance

Handling capacity often depends on bioload, livestock density, and feeding habits. This unit offers flexible coverage:

• Heavy bioload: up to 80 gallons

• Moderate bioload: up to 120 gallons

• Light bioload: up to 200 gallons

This range supports mixed reefs, FOWLR displays, and growing coral setups that eventually transition to heavier nutrient demands.

Technical Specs

• Footprint: 10 in x 4 in

• Height: 21 in

• Pump: Aquatrance 2000s pinwheel

• Flow: 198 GPH

• Air draw: 25.2 SCFH

• Power: 18 watts

• Pump dimensions: 4.5 in x 2.4 in x 3.6 in

Results can vary depending on mounting height, water depth at the intake, and sump-free installation factors.

A Quick Word on Reliability

Reef hobbyists consistently appreciate how the Reef Octopus 2000 skimmer balances power with a compact form. Its footprint leaves room for power cables, refugium hang-ons, and dosing lines where space matters most. The acrylic build withstands daily wear, and maintenance does not require complex disassembly, which saves time during water change routines.

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