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READY STOCK Aquarium Water Changer Vacuum Water Change Gravel Tukar air / Sedut air Cleaner Siphon Pump 2JENIS BOLEH PILIH -ONE IS CAN ANTI SMALL FISH VACUUM INSIDE -ONE IS GIVE THE SOIL CLEANING 1. Put the water changing straw into the fish tank. 2. Put the water outlet at the other end of the water pipe into the bucket. 3. Open the water system valve. 4. Gently squeeze the air cavity by hand until it automatically discharges water. 5. Lower the water inlet to absorb fish manure and feed residue in the sand. Note: Different types of fish tanks can adjust the water outlet size of the valve as required. This product is designed with the principle of air pressure siphon, which helps aquarists to easily and simply change and pump the water in the fish tank. It replaces the old method of sucking with water nozzles and makes fish farming easier, safer and more hygienic. Absorbing water can also help clean sand and gravel, residues and stains attached to water plants and sand beds. Until the water comes out from the outlet Tips If the water cannot be sucked out according to the correct usage method during use, check whether the connecting pipes at both ends of the airbag are loose, causing air leakage. The medium is filled with water, and it will return to normal after shaking it several times after pinching it with both hands.