Fluval BioMax Media provide highly effective biological filtration, creating the ideal environment for beneficial bacteria that help maintain healthy, balanced aquarium water conditions. Featuring a network of microscopic pores, channels and tunnels, BioMax offers an exceptionally large surface area for beneficial bacteria growth, supporting robust biological filtration. The colonies of water-purifying bacteria supported by the ceramic media help metabolise ammonia and nitrite, reducing harmful waste compounds and improving overall water quality for fish. Designed to enhance the performance of a wide range of aquarium filters, BioMax ceramic filter media can be used in freshwater and marine aquariums to support long-term filtration efficiency. Made from durable, inert ceramic material, Fluval BioMax delivers reliable biological filtration with minimal maintenance, helping create a stable aquatic environment for tropical fish, coldwater fish and aquatic plants.