Reef Octopus

Classic 2000 Hang-on-Back Protein Skimmer (OPEN BOX)

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HOB skimmer with pump mounted externally under the skimmer body. Unique design reduces heat exchanged to the water. Easy removal of the pump for cleaning and maintenance. Powered by a Hailea OTP pumps with improved venturi design and pinwheel impeller. Built with high-quality acrylic.


Heavy Bioload - 75 gallons

Medium Bioload - 100 gallons

Light Bioload - 175 gallons


Will fit on tanks with a rim under 1.75"


  • Pump is mounted under skimmer body to reduce heat exchange to tank
  • Uses metric plumbing parts
  • Dimensions: 8" x 3.25" x 17"
  • Manufacturer rates skimmer for tanks up to 200 gallons
  • BRS Recommends this skimmer for tanks up to 100 gallons
  • Powered by OTP pump at 500 GPH
  • High performance venturi air injection system
  • 1 year warranty on skimmer and pump

 Owners Manual

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