Feature 1.MultifunctionalWater changing, sand washing, excrement absorbing, raking sand, scraping algae. Do not need to energize, this siphon drainage will work as long as the bucket is lower than the tank. 2.Fish ProtectorThe fish tank gravel cleaner includes a filter basket net which prevents aquarium gravel from jamming the check valve assembly, separates and removes debris from your aquarium.avoid smaller fish from being sucked into the apparatus. 3.Easy To OperateAquarium cleaner adopt of air-pressing button with humanized design to control water flow, ensuring it can easy operate with single hand, and can adjust suction to clean different place according to different needs. 4.Extended See-Through TubeSee-through pipes that are used for one section or two sections that are flexible to extend the length without worrying that sediment cannot be removed from the bottom of the tank. Specifications: Colour: transparent Material: Plastic Suitable for:Fish tanks up to the depth of 85cm Length of the Soft Outlet Tube: 200cm Type:Siphon Sub-Type: Fish Tank Siphon, Fish Tank Cleaner Features:Efficiently and Quickly Package : 2 x Inlet Pipe 1 x Outlet pipe 1 x Water Flow Clamp 1 x Water Tube Fix Clamp 1 x 3D Filter Basket 1 x Connecting Pipe 1 x Water Changer 1 x Glass Scraper WARM TIPS: 1.The position of water outlet must be lower than the inlet when in use (at least 50cm). 2.Need to keep pressing the air-pressing button until water flows out automatically.