Electric Aquarium Siphon Filtration Pump, Extendable Tube, Automatic Sand and Gravel Cleaner, Fish Water Changer

3-in-1 Electric Aquarium Cleaner: Water flows automatically when the pump is turned on, eliminating the need for manual pumping. It effectively and effortlessly cleans the aquarium. Use the suction nozzle to clean gravel; perform water changes with tubing; or filter aquarium waste with the goose-beak nozzle. It meets most aquarium cleaning needs. Turn the outlet valve to freely adjust the water flow from 53 GPH to 211 GPH. Expandable tubes allow for convenient combinations to fit different aquarium sizes. Includes biochemical cotton for nitrifying bacteria to remove harmful materials, and a cotton filter to easily filter debris from the tank. Effectively improves water quality for fish. The fully detachable body allows for easy cleaning after use and saves space.