10/31/2026
No room in the sump for a reactor? The Reef Octopus BioChurn 90ext uses a hang-on-back design and a churn plate to keep biopellet media moving. Explore the installation details for your aquarium.
BioChurn 90ext HOB Reactor
Product details: https://www.marineconceptsupply.com/products/oct-bc90e