uxcell Blue Bio Chemical Mat Filter Sponge for Betta Aquarium Kio Pond 14.6 x 5.1Inches

1. Can be used for sea water tank, fresh water tank and waterweeds tank with sizes being cut as you wish. 2. Suitable breeding grounds for cultivating the fine nitrobaceria with this density and flexibility. 3. The biochemical cotton has good effect on decomposing the excrement and the food residue, improving the filtering and cleaning of water. It can reduce the death rate of fish. 4. Being cleaned with mater cnce per month without blocking and deforming. It can be esed reused for many time. Feature:Remove harmful free-floating waste and debris Improve water quality Effectively remove all organic particles, foreign debris and excess food.