Aquapapa Bio Sponge Filter 10 or 20 Gal Breeding Fry Betta Shrimp Fish Tank Aquarium (Ship from CA USA)
[Product Information]
Bio Sponge filter is good for aquarium and provides both mechanical and biological filtration. The aerobic bacteria colonize the sponge and help break down harmful waster such as ammonia and nitrite.
Simply connect the unit with an air pump thru airline tubing and provide both aeration and filtration for your fish.
These sponge filters do not trap fish fry and are safe for small size fish like dwarf cichlid, guppy, killifish, etc. They are useful for as breeding filter or as secondary filter. Or they can be used as pre-filtration unit by fitting to an external or a top filter.
Two sizes of filter available - Small and Large. (1) Small filter Dimensions: 3.0"D x 6.5"H - Recommended max tank size: 10 Gal; (2) Large Filter Dimensions: 4.5"D x 8.0"H - Recommended max tank size: 20 Gal.