The Fiji Cube Advanced Hang On Back (HOB) Refugium Box PRO SERIES in Medium is a convenient and robust filtration solution designed to enhance the water quality and biological diversity of your aquarium, specifically recommended for10 to 30-gallon systems.
A refugium serves as a separate, safe environment to grow macro-algae and cultivate beneficial organisms like copepods and amphipods, which then feed invertebrates and fish in the main display tank. It also offers a secure space for the segregation or acclimation of new fish or coral.
Key Features of the PRO Series:
- Robust Hang-On Design:Offers a secure and convenient installation on the back of your existing aquarium.
- Integrated Hang-on Support System:Features a unique and robust support system that ensures extra safety and prevents the box from bowing.
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Fiji Flow 300DC Nano DC Pump:This PRO Series model includes an efficient and powerful DC pump with a digital flow controller, allowing you to:
- Adjust Flow Rate:Versatility to control the exact amount of water flowing through the refugium for optimal filtration.
- Feed Mode Function:Reduce aquarium stress during feeding by temporarily adjusting the flow.
- Spacious Chamber Design:Provides ample room for macro-algae growth (refugium), segregation, or acclimation purposes.
- Full Cast Acrylic Construction:Built with durable, full cast acrylic for exceptional strength and longevity.
- Full Top Brace Support:Adds structural integrity to the box, further preventing bowing.
- Polycarbonate Cover:A protective cover to help contain the environment.
- Integrated Holders:Convenient holders for a test probe and dosing tubes, making the complete aquarium system more organized.
- Lighting Mount Support:Includes removable mount support for display tank lighting and/or dedicated refugium lighting (lighting sold separately).
Specifications:
| Model | Dimensions (L x W x H) | Distance between the Two Hang-on Arms |
| Hang On Refugium Box – Medium | 8” x 5” x 12” | 8” |






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