The Coralife BioCube Filter Cartridge includes 2 replacement cartridges that fit the BioCube 8, 14, 29, and HQI. These cartridges help keep your aquarium water crystal clear and removes discoloration and nasty odors!.
- Keeps water crystal clear
- Removes odors and discoloration
- Easy to remove and change once a month
It is recommended that cartridges be changed every 4 to 6 weeks.
Note: Formerly called Oceanic BioCube Original Replacement Filter Cartridges, Model #82105.