AQQA Aquarium Sponge Filter (S)

Double Filter Function This sponge aquarium filter integrates biochemical filtration, physical filtration and oxygenation, which can help you maintain the health of the water quality in your fish tank, and the air bubbles can also make the landscape of the fish tank more vivid and interesting.
How It Works Water enters from the bottom and all sides and is double filtered by biochemical sponge and ceramic filter media. Use the aquarium air pump to drive the water flow and the air bubbles generated by the air stone to rise, and finally release clean water and oxygen at the water outlet.
Easy to Set Up You just need to fully wet the sponge with the water in the fish tank, let the filter sink to the bottom of the tank, then connect and turn on the air pump. (This fish tank filter must be used with an air pump and a 4mm/0.16" (inner diameter) air hose, please note that the air pump and air hose are not included in the package.)
Package Includes 1* Biochemical sponge filter with media container, 1* Sponge Replacement, 1* 1 Bag of bio ceramic media balls, 1* User manual. (The filter container can be filled with ceramic filter balls or other filter media which can meet your needs.)
Suitable For Size S: Recommended for fish tanks below 15.75 inches in height. It is suitable for freshwater tanks and salt water tanks, suitable for all kinds of ornamental fish breeding, betta, tropical fish, planted tanks or shrimp tanks, etc.