Description Air Operated Internal Small Corner Filter, Quiet filtering system. Perfect for small aquariums up to 15 gallons. Air Driven Bio Corner Filter Sponges with gravel and bio rings. Comes complete with gravel, bio rings and two layers of sponge filter foam as filter media. Bio-sponges and gravel work as a biochemical filtration and support colonization of beneficial bacteria. Each unit requires an air pump and airline tubing to operate together (sold separately, not included). Size is 3 Inch on Square Corners, 4 Inches Across Front Gravel, Bio Rings & Filter Sponge Filter Media Included Adjustable uplift tube to 7 Inches Quiet Filtration, simple and effective Especially good for breeding small fish Needs air pump and standard airline fittings to operate (Not Included) Easy to maintain. Just take out the sponges and rinse well when it becomes dirty. Air Operated Internal Small Corner Filter Fits standard aquarium fittings. Especially good for breeding small fish. Finally, wash this and all ornaments or decorations in water prior to placement in tank. Caution: Never use any soap or detergent on any items placed in your aquarium, fish tank or reptile enclosure as they are highly toxic to fish and some plants. Be sure to check our INFORMATION CENTER for our latest Aquarium Blog on the mystery of real aquarium ornaments vs resin fish tank decorations. We also post regularly on our Aquarium H2o FACEBOOK PAGE!
