Aquarium Gravel Cleaner, Fish Tank Gravel Cleaner, Vacuum Syphon Pump Cleaning Kit Hand Siphon Pump For Fish Tank, Water Changing And Filter Sand Clea The aquarium gravel cleaner is a system with a manual controller, which can help you clean the water tank efficiently and quickly. It is designed with the principle of pneumatic siphon to make cleaning the fish tank easier. The dual-purpose design, while absorbing water, the fish tank gravel cleaner can help clean sand and stones and the residues and stains attached to the grass and sand bed. This syiphon pump cleaning kit allows you to do much more expensive siphon work at low cost, and can prevent fish from being injured or disturbed when transferring water, ensuring a healthy environment for the fish tank or aquarium. The fish tank siphon clenaer is made of high-quality materials, durable enough for daily use, simple to use, easy and quick to complete the fish tank water change and pumping work. It is easy to use, just put the water change suction tube into the fish tank, the other end of the water tube is put into the bucket, open the water valve], and gently squeeze the air cavity by hand until it automatically discharges the water, lower the water intake, to suck out Fish manure and feed residues in the sand