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Reef Octopus HOB 1000 Hang on Back Protein Skimmer

  • The compact Reef Octopus Classic 1000-HOB is a proverbial favorite amongst hang-on back protein skimmer users providing beneficial filtration for aquariums up to 130 gallons.

    With it’s unique design, the pump is mounted externally and under the actual skimmer body allowing for much less room needed behind the aquarium and less heat-to-water exchange. The Reef Octopus Classic 1000-HOB is constructed of high-quality acrylic and equipped with the new highly efficient Aquatrance pinwheel pump that produces an ideal mix of water and air for optimal waste removal.


    • Low Profile body
    • Reef Octopus Aquatrance 1000s Skimmer Pump
    • Efficient Low Heat Performance
    • Pump Mounted Externally
    • Surface Skimmer
    • Air Silencer 
    • Solid Acrylic Construction


    Bioload Rated Up To
    Heavy 60 Gallons
    Medium 80 Gallons
    Light 130 Gallons



    Footprint: 8in x 3.5in

    Total Height: 17in

    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


    - Two(2) year on pump body

    - One(1) year on pump rotor

    - One(1) year on Skimmer Body

    Assembly Diagram

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