Equipped with a water inlet pipe and two extension pipes, it is convenient to adjust the height according to the size of the tank or the water level. The suction head is designed with an inner net to reduce suction and prevent aquatic plants or small fish from being sucked into the water. The upper part of the handle can be hung on the edge of the aquarium after use, and the cleaner can free your hands and easily clean the aquarium. The aquarium gravel washing machine is used to clean the gravel and siphon the excrement of fish and other debris through the filter mesh bag, then the clean water enters the bag and flows into the water tank, and the water can also be discharged through the garden hose. /p> Powered by 2 x “C” type batteries with on/off control button. (Batteries not included)