Description
The Tetra BF 400/600 plus replacement filter sponge filters the aquarium water in the Tetra IN 400 plus and IN 600 plus internal filters highly effectively. Biologically active bacteria cultures settle in the filter sponge: Harmful nitrite is converted into nitrate. Sponge structure ensures good mechanical filtration: small, visible particles are removed from the aquarium water. Suitable for freshwater and marine aquariums.
