Powerful water pump: 8W power, adjustable flow rate from 200 to 500L/H, maximum lifting height up to 0.7m (power cord length: 1.5m). Efficient spiral design consumes less energy and manifests good performance Adjustable flow and speed: water flow can be adjusted by the control valve, water outlet direction can be adjusted downward. up, down, left and right, which can meet your various needs Ultra-Quiet: The pump is really quiet which won’t disturb your fishes (The pump should be completely submerged in water when use) 3 stages of filtration: the chemical, biological and mechanical filtration parts are easily removable to add or remove as needed to provide a clean and fresh environment Easy installation: with powerful suction cups , it is easy to place the filter in the aquarium and attach it to the aquarium wall