Fine grained filter sponge 40ppi 25x25x5cm Happet (S-C058SN)

Fine grained filter sponge With a density of 40 ppi Universal filter sponge that will provide your tank with effective mechanical and biological cleaning. Thanks to its medium density, it will catch most impurities and will not require as frequent cleaning as fine-grained sponges. The sponge is an excellent habitat for nitrifying bacteria, which ensure the proper functioning of the aquarium ecosystem.  universal sponge – you can easily cut it to the size you need high density – can cope with even the smallest impurities effective mechanical and biological filtration Thanks to carefully selected materials, the sponge is completely safe for the aquatic environment in your aquarium and for its inhabitants.    Measures: 25 x 25 x 5 cm Density: 40 ppi