Key benefits Easy maintenance: Assemble the water changer, install the inlet tube to match your tank depth, place it inside the tank, and position the outlet tube into a water container (secure with a clip). Press the water changer button until flow starts automatically. Keep a minimum height difference of 50 cm between inlet and outlet for performance. Allinone cleaning tool: 6 in 1 professional fish tank cleaner covers water changing, sand washing, sand paving, waste suction, algae scraping, and gravel leveling in one device, simplifying aquarium care. Userfriendly protection: An internal filter prevents large particles or small fish from being sucked in, and a glass scraper assists with cleaning the tank bottom and walls. Efficient pneumatic operation: Airpowered design with a pneumatic button enables effective suction of water and debris for quicker water replacement and tank cleaning. What it does Function: Performs water changing and debris removal while also enabling substrate maintenance and algae control. Versatility: Combines six cleaning tasks into a single tool to address common aquarium maintenance needs. Performance: Pneumatic action provides reliable suction and flow to remove water and waste efficiently. What to know about use and setup Depth compatibility: Inlet tube depth should be adjusted to suit your fish tank, and the system requires a minimum 50 cm height difference between the inlet and outlet for operation. Setup steps: Assemble the unit, install the inlet tube to the appropriate depth inside the tank, place the outlet tube into a water container (secure with a clip), and press the button to start flow. Use scenarios Routine water changes in a community or tall tank: Quickly remove water and waste while keeping fish safe with the internal filter, then with fresh water. Substrate maintenance in gravel or sand tanks: Use the device to suction waste while simultaneously washing or leveling sand and gravel, reducing manual effort. Algae control and edge cleaning: Use the glass scraper to clean tank walls and bottom while the pneumatic suction removes loosened algae and debris. Notes The internal filter helps protect fish and large debris during operation. The glass scraper aids cleaning of tank bottom and walls. The cleaner uses an airpowered pneumatic design for efficient suction and water replacement.