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

Improved Formula

Enhance Color

It can reduce fish deaths

Need to buy separate C Type Battery

Redness of fish body can be more evident

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