Pssopp Aquarium Biochemical Sponge Filter Air Driven Fish Tank Corner

【Perfect Filter】It can clean sundries and stabilize water quality. Can cultivate useful bacteria that are good for aquatic pets. It result in a cleaner living environment for fish, particular they are useful for as breeding filter or as secondary filter. 【Multi-layer Sponge Design】 Multi-layer sponge design, can be cleaned in sequence, moving the cylinder does not affect the water quality. Supplying the water much needed oxygen. 【Material and Size】100% brand new and high quality. Material: Plastic + cotton; Size(D x H): 4.5 x 8cm. 【Function】Provides biological filtration to the aquarium, helps to stable water quality. Increase the oxygen solubility. 【Super Silent】Working noiselessly,good permeability, easy to clean. Super biochemical sponge filter features silent operation, and has an excellent filtering effect while oxygenating the water.