Exclusively designed for Fluval aquarium canister filters, Fluval
Bio-Foam performs exceptional mechanical and biological filtration.
Bio-Foam's dense structure is very effective at trapping small particles
that are not captured in the first stage of foam filtration. In
addition, its intricate network of pores provides a large surface area
that encourages the growth of helpful nitrifying bacteria, which is
crucial for efficient biological filtration and goes a long way in
creating clear and healthy water for fish and plants to thrive. Suitable
for freshwater and marine environments. 1-pack.
For Fluval Filter Models: 104, 105, 106, 204, 205, 206