Sponge filters provide both mechanical and biological filtration. They trap waste particles and clean the water without trapping baby fish and provide an ideal location for bacterial colonization. Air-fed sponge filter. Works great with no noise 9-layer double ribbed sponge, it quickly creates a bio filter and more oxygen, 2 porous 80 ppi high density sponges for a larger surface area for beneficial nitrifying bacteria for colonize and speed up cycling, keep your aquarium clear and clean Easy to use and clean - Attach the air hose to the air inlet and turn on the air pump, provides aeration and filtration in a single solution, an excellent way to clean and oxygenate your tanks; easy to clean: just rinse and squeeze sponges in tank water Comes with 2 media chambers (without bio media), can be added to any bio media as needed, design of the filter cartridge can hold more filter and provide larger adhesion area for nitrifying bacteria, with better biological filtration effect 【Suitable
