Aqua Della Aquarium filter accessory internal sponge Bob

Replacement filter for bio-air internal sponge filter for simple aquarium cleaning.
The BOB internal sponge filter is equipped with a pump that draws in water. Its capacity is therefore greater than that of an air filter. It has the great advantage of filtering more water and increasing the flow rate in the aquarium. Thanks to its fine sponge, this 2-sponge filter is absolutely risk-free, even for shrimps. It even removes small particles from the water.