WuyouChy Aquarium ATO System Fish Tank Water Level Controller Automatic Top Off Water Filler with Adapter

Description

When you are on a business trip or traveling, use our water compensator to avoid water shortage in your fish tank, aquarium tank, tortoise tank, or other tanks. To use it, you just need an ordinary 1-2L water bottle. Screw the compensator to the bottle, then stick it to the tank. No wiring or power supply required. When the water level drops to reveal the shorter tube, the water in the bottle automatically flows into the tank due to pressure difference. You can cut the tube into the length accor