Fluval BIOMAX Filter Media, 500 g (17.63 oz)

Fluval

Fluval BioMax rings have a complex porous design that ensures optimal contact time as water passes by for efficient biological filtration and beneficial bacteria growth.

Biological filter media
Greater capacity than most biological filter media
Also helps reduce and control ammonia and nitrate
For Fluval filter models: 106, 206, 306, 406, FX5, FX6, 105, 205, 305, 405, 104, 204, 304, 404
For freshwater and marine aquariums