Reef Octopus Octo 15A Reef Sump, 15″x15″x13.78″

Reef Octopus Octo 15A Reef Sump, 15″x15″x13.78″


SKU: 6950291252043 Category:


Reef Octopus OCTO Sump Series

With bold red color accents and a bevy of practical features, the new Reef Octopus OCTO Sump Series is perfect for discerning reef aquarium hobbyists who crave luxurious good looks with performance-inspired design.

You can house all your red Reef Octopus equipment like skimmers, reactors, and pumps in a cool complementary container so your sump looks just as good as your display tank.


Features You’ll Love

  • 4 sizes to choose from

  • Reef Octopus red color accents (matches other Reef Octopus products)

  • Solid acrylic construction

  • Adjustable water depth from 5.1” to 9”

  • Dedicated protein skimmer (and/or reactor) chamber

  • Dedicated return pump chamber

  • Dedicated freshwater reservoir with lid for ATO

  • Bubble-diffusing intake chamber with lid

  • Built in filter sock holder

  • Built to accommodate roller filter mats like the Klir Filter Di-4

OCTO Sumps are truly a work of art. Solid acrylic has been fused together by hand and then compartmentalized for the perfect fusion of form and function. A dedicated protein skimmer (and/or reactor) chamber, a return pump chamber, and a freshwater reservoir for your auto top-off (ATO) system are all built in with meticulous craftsmanship.

 A filter sock holder is also built in for what has become the standard in mechanical filtration for sumps. But the engineers at Reef Octopus observed the trend of using automatic filter rollers for mechanical filtration so all units are designed to accommodate the Klir Fleece Filter Di-4 (sold separately) so you can enjoy maintenance-free aquarium filtration for months at a time.

Keep annoying microbubbles bubbles out of your display tank and salt creep out of your sump and stand with the OCTO Sump’s bubble-diffusing intake chamber and lid. A lid is also included to cover the freshwater reservoir chamber to slow evaporation.

Another hobbyist-friendly feature is the ability to adjust the water level in the sump. All OCTO Sump models have the ability to adjust the water depth inside from 5.1” all the way up to 9”. This makes it super easy to set the right depth for your protein skimmer to perform optimally without the need to buy a separate stand to raise it.

Reef Octopus OCTO Sumps are made to be your “forever” sump. A sump that is built like a tank and packed with useful features and rugged good looks. A sump you can be proud of. A sump you’ll want to post on your Instagram and show off when friends come over. We believe OCTO Sumps will meet and exceed all your expectations because they were built by reef hobbyists, for reef hobbyists. Thank you and enjoy!

Reef Octopus OCTO Sump OS-15A

Machine-cut acrylic with Reef Octopus red color accents and compartments for easy setup. Includes freshwater reservoir, filter sock holder, and bubble diffusing intake chamber with lid.

  • Size: 14.96″ x 14.96″ x 13.78″

  • Skimmer Chamber: 9.45″ x 9.45″

  • Return Pump Chamber: 4.5″ x 6.5″

  • ATO Reservoir Size: 1.5 Gallons

  • Adjustable Water Depth: 5.1″ to 9″

  • Drain Bulkhead: 1″