FILTER BIO-MAT HARD

It is made of high quality knitted polyester and a special water-resistant binder. Its special structure ensures good water penetration. It supplies beneficial bacteria which remove toxic ammonia and nitrite salts. It has a large surface area so that large numbers of bacteria can be cultivated at a rapid rate.

It is durable, easy to clean.

It is the most advanced aquarium filter sponge on the market.

32x12x3.8cm

100x100x3.8cm