Aquarium Biochemical Sponge Filter Multifunctional Fish Sponge Filter for Fish Aquarium

PERFORMANCE: Aquarium sponge filter catches larger waste particles and mechanically cleans the water without trapping fish. MULTIPURPOSE: Aquarium biochemical sponge filter can be used as a culture filter or as a secondary filter. IDEAL : Aquarium biochemical sponge filter is a great way to clean fish s and cultivate useful bacteria that are beneficial to fish. Item Type: Aquarium Bio Sponge Filter Material: Cotton, Pastic