Sell Sponge Filter for aquarium XY 2830 2831 for filtration fresh water tank best price

Feature: 1. The sponge filters are made of excellent and perfect material; It can be reused for a long time. 2. The sponge of filter is designed by multilayer principle, it has a large surface that will not cause blockage and could be washed easily. 3. When using the filter system, the sponge filter will not cause any noise pollution. 4. When using air stone which will produce air supply for the aquarium tank, it will increase the oxygen level in the tank. 5. The sponge filter had gone through tough tests in all expected situations for the perfect quality. 6. The sponge filter is suitable for all freshwater fishes like Discus, Tetra, Guppy, Arowana, Betta, etc. Tips for successful operation: - Soak the sponge in the aquarium water for 5 minutes before use. It will help nitrifying bacteria colonize easier. - Always use aquarium water to rinse clean the sponge, never use hot water.