Horianzo Aquarium Sponge Filter for Biochemical Cotton Reusable Foam, Washable Carbonized Sponge Mat Suitable for Sea Water and Fresh Water Aquarium Tool

aquarium filter sponge : Use for freshwater and saltwater aquarium.According to the analysis of the experts, products with this pore gap and flexibility and the most suitable breeding grounds for cultivating the fine nitro bacteria. The filter cotton has the best effect on decomposing the excrement and the forage left over. improving the filtering, cleaning. it can reduce the death rate of fish. The experts according to experiment concluded that the molecules hole size. And softness is best suitable to develop the best for bacteria. The bio sponge is able to dissolve waste of fishes. Also improve water quality than will reduce death rate of fishes in tank