Rectangular sponge, sheet 50 x 50 x 3 cm, gray

Rectangular sponge 50 x 50 x 3, coarse, a leaf for the aquarium - is used as a filtration material. It serves to remove mechanical impurities from water, such as food remains, dead plants and other small particles.

due to its large porous structure, the sponge has a large surface, on which beneficial bacteria that are responsible for biological filtration can be placed In the aquarium.

the sponges are in various sizes to meet the requirements of different aquariums. It can be easily cut for any form of the filter.

the diameter of the hole is 13 mm.