PERFECT FOR REGULAR WATER CHANGES - No messy drips and a sturdy one-way valve to improve suction. You can clear 30L in about 5 minutes. KEEP THE AQUARIUM CLEAN - Remove debris and fish debris from the bottom of the aquarium and easily replace water. MATERIAL - The aquarium water changer is made of high quality HDPE and can be used for a long time. Widely used - It can meet the needs of aquariums of different heights and is widely used in aquariums, aquariums and other containers.
