3-in-1 Automatic Electric Aquarium Vacuum Cleaner, Gravel and Sand Cleaner with Water Change, Gravel Vacuum Suitable for Medium and Large Aquariums

3-in-1 Function: Integrates three modes for water exchange, suction, and sand cleaning, suitable for freshwater and saltwater aquariums (recommended water depth ≥ 30 cm). Flow Regulation: Equipped with a flow control valve to adjust the water flow (no outlet hose required). Cleaning Function: A powerful pump effectively suctions debris around roots, rocks, and in corners. Regular filter cleaning prevents clogging and maintains suction power. Safety and Durability: The pump impeller is manually removable. Regular cleaning of internal deposits reduces pressure on the impeller and extends its lifespan. Simplified Operation: Place the pump on a horizontal surface before use and press the power button to start it.