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Aquarium Gravel Cleaner Vacuum Handheld Siphon Pump with Long Filter Nozzle All-in-One Water Changer Aquarium Cleaning Accessories Package Including 1 x Aquarium Gravel Cleaner Material: plastic Color: as the picture Total Length: 143 cm/ 60" ★ Gravel Vacuum Cleaner Usage： 1. As shown in the picture, put the water inlet mouth into the fish tank, and put the outlet mouth into the bucket to press hand bulb 3-4 times. Using the siphon principle, the water can flow out automatically. Note: the water outlet must be lower than the water inlet when using. 2. After the water flows out, please put water inlet tube in the place where there are many dirtys. Stirring on the gravel can absorb the dirtys with the water. Note: small fine sand particles may be sucked away during use. 3. In addition, if you want to reuse the used water in the aquarium, place a filter at the front end of the drain pipe hose and use the clean water again.