Hagen 6-Pack Fluval Biomax 500gm Aquarium Water Filter Media, 17.63-Ounce
Fluval BioMax bio rings have a complex pore system creating an optimal environment where beneficial bacteria can thrive. The BioMax bio rings have more capacity than most biological filter media and allow ideal water movement throughout the media, to ensure optimal contact time for efficient biological filtration. It also reduces and controls ammonia and nitrate. For freshwater and marine environments. For filter models: 105, 205, 305, 405, FX5, 104, 204, 304, 404, 103, 203, 303, 403Fluval BioMax ceramic rings have a complex pore system where beneficial bacteria can thrive. With more capacity than most biological filter media, BioMax helps reduce ammonia and nitrite. Plus, the rings allow ideal water movement throughout the media, to ensure optimal contact time for efficient biological filtration. Replace BioMax every 3 months. For freshwater and marine environments. IMPORTANT: Replenish only half at one time to allow proper seeding from older media to new. Premium select media for use in Fluval Canister Filters, ideal for all filters. Suggested Media Placement 105, 205, 305, 405, 104, 204, 304, 404, 103, 203, 303, 403: Upper Media BasketsFX5: Bottom Media Basket.