Sobo Aquarium Biological Filter Sponge 60X45X5 Cm Blue

SIZE: 60x45x5 cm
It is a mechanical and filtration material in fresh and saltwater aquariums. The holes in its structure provide an environment for bacteria and help the harmful substances in the water turn into less harmful forums. It has the feature of being washable. It can be used by washing again when it gets dirty. It is recommended to wash with warm tap water before the first use.