[Applicable to a variety of aquariums] Comes with 2 suction cups for absorbing glass, which can be installed anywhere, and can also be used as a front or secondary filter; very suitable for shrimp tanks, fighting fish tanks, breeding tanks, turtle tanks, goldfish, discus, crayfish, fry, juvenile or other fish. [Function of multiple filtering] The sponge filter has two small filter boxes, which means that a larger area can be used to sow beneficial nitrifying bacteria, with faster circulation and better filtering effect. The sponge filter provides mechanical and biological filtration, which provides an ideal place for bacterial colonization. The sponge can capture larger particles of debris and mechanically purify the water without catching juvenile fish. [Keep the water clean] You can easily remove 2 sponges from the filter to clean or replace it. It also has a filter holder inside to help remove harmful substances and provide additional cleaning functions. The circulation is faster, so the water in the tank is very clean and clear. Make your fish happy and the aquarium water is crystal clear. [Low noise] The sound produced by the sponge filter is very low and will not increase due to long-term use . It is suitable for family use and will not affect family rest and entertainment. [Easy installation] The filter has two suction cups, which can be installed anywhere, and can also be easily hidden on the back wall of the aquarium. It is also very convenient to disassemble and clean from time to time, and will not damage the aquarium and the filter. Size 15*18cm Delivery quantity: 1 piece Welcome to meet