Provides both mechanical and biological filtration. Prevents the smallest particles of dirt while keeping a perfect water flow. Use for aquariums of Freshwater and salt water. Promotes the cycle of nitrogen and reduces the death rate of the fish can be reused after cleaning High quality product. It is recommended to place the blue filter sponge after the white filter buffer. Maintenance of the blue filter buffer: The sponge must be rinsed whenever it becomes dirty, about once every 1 to 4 weeks. It is useful to reserve the beneficial bacteria by washing the sponge gently with water from the aquarium instead of tap water. After 6 to 12 months of use, the microphone Sponge are gradually clogged with small debris, beneficial bacteria will not have as much living space as before. This is where the sponge filter begins to lose its effectiveness. It is therefore also recommended to replace the sponge once 6 to 12 months or when the sponge is worn. Features: Material: Sponge. Color: white
