1.The aquarium filter provides effective filtration and increases the oxygen level to ensure a clean tank environment. It features fine cleaning effect, quietness and easy maintenance. 2.Fine Sponge Filtration: The aquarium filter provides mechanical and bio filtration and traps debris or waste without sucking up your fish, keeping a crystal-clear water tank. 3.Easy to set up & clean: This aquarium filter are simply installing an airline into the unit and turn on the air pump, simply rinse and squeeze sponge in tank water. 4. Quiet environment: This air-driven aquarium filter creates a gentle flow without causing disturbance to you or your fish. 5.Safe for fish: The aquarium filter soft sponge material, traps floating debris and won't suck up your fish.