Adjustable head for optimal flow direction. Allows constant circulation of the water, ensuring every part of the aquarium has access to oxygenated water Includes super-strong magnetic mount. Freely adjust the position of the wave maker without having to reach into the tank; Works in both fresh and salt water Adjustable flow rate for finetuning the water movement to satisfy different aquarium inhabitants Oil-free motor provides pollution free environment; Low energy consumption: Requires only 12 watts of power