Description: Quick disassembly quick assembly/ waterproof storage / water changing faeces cleaning / rapid water discharging/ one-handed control. One push and one press, easy to grasp the water volume with one hand, custom-made special water flow switch, which is not bulky and more easier. High-quality quick inserted connector thickened water pipe: Good air tightness and not easy to be broken. With this tool, you can remove the dirt from the bottom of your aquarium. Supplied with long suction pipe, it is suitable for both large and small aquariums. Suitable for aquarium water changing, container pumping, cleaning, etc. Specification: Usage method: 1. Put the water change straw into the fish tank. 2. Put the water outlet at the other end of the water pipe into the bucket. 3. Squeeze the air chamber until it works. 4. Lower the water inlet to absorb fish feces and feed debris from the gravel. 5. Different types of fish tanks can adjust the size of valves as required. Material: Plastic Size Chart: 183cm/72.05inch 208cm/81.89inch Package Includes: 1x Aquarium Siphon Water Change Changer Note: 1. Put the water inlet into the aquarium 2. Do not drain the water during use 3. The water outlet must be lower than the water inlet. 4. Keep pressing the water suction ball, stop pressing after the water flow is formed, and then change the water for cleaning. 5. Because the filter has pore structure, too fine sand will be sucked out. Tighten the outlet pipe to control the water flow. Avoid this situation.