XY 1810 Xinyou Filter Sponge - Top Filter Sponge - Molded Aquarium Sponge - 32 × 12 × 2 cm - (2 in 1 Pack)

Ideal for all brand Top filters, this sponge is versatile in use.

• This product can be used for sea water fish tank, fresh water fish tank, planted aquariums with sizes being cut as per your wish.
• The pore gap and flexibility of this material sponge is the most suitable breeding ground for cultivating the fine nitrobacteria.
• This biochemical sponge has the best effect on decomposing the excrement and the food leftovers, and improve filtration and cleaning of water. It can reduce fish deaths.