Aquarium Filter, Practical Fish Filter, Biochemical Sponge Filter, Mini Air Filter, Multi-Layer Filter for Small Tanks

【Keep Water Clear and Clean】 Biochemical cotton, nitrifying bacteria culture, multi-layered design, with a large surface area to filter impurities. Makes water quality clearer.

【Multi-Layer Design】 Multiple filtration: the bottom of the filter is a layer of biochemical sponge, the middle layer is made of air stone, and it's covered with a funnel outlet for better filtration.

【High Quality】 Our biochemical sponge filter is made of high-quality plastic, strong and durable.

【With Suction Cup】 Powerful suction cup, durable and attractive, easy to clean and install.

【Note】 Aquarium filters must be used with an oxygen pump. Size: Height: approx. 9.8 cm / 3.9 inches, Width: approx. 3 cm / 1.2in.