• Efficient 4-in-1 Cleaning. Dirt Suction: aquarium vacuum cleaner with duckbill suction port, helps to pull out fish waste and impurities. Sand Washing: built-in detachable filter sponge, prevents sucking up your fish. Water Changing: simply press handle button to quickly begin siphon. Scraper: duckbill suction inlet with spatula, helps to easily scrape off glass dirt.
• Adjustable Water flow. Features an easy to adjust valve that allows users to adjust the water flow as desired during operation. 6-foot flexible hose with bucket clip for secure hoses to prevent splashing.
• Innovative and Stylish Design. The ergonomic handgun design with piston trigger makes it easy to hold and start the water flow.
• Versatile and Adaptable. Aquarium cleaner with extension hard tubes, can be extended from 30cm to 50cm for taller or deeper aquariums. Its rotational suction head guarantees no dead angles, providing a complete aquarium cleaning.
  

Suitable for: 30cm - 90cm tanks. Also can be used with larger tanks but do note the hose size is 12/16mm, so there is a limit to the water flow.