Versatile Cleaning Kit: With an inlet protective cover, the siphon vacuum cleaner never sucks away fry or shrimp. Easy to Use: Simply fix it on the tank wall, squeeze the siphon pump to suck out the water, and rotate the top handle to adjust the flow as needed. Reach Everywhere Easily: Featuring an extendable hard tubing, the water inlet tube of the aquarium gravel cleaner can be extended from 11 to 16.5. With this dino toy set, children can create their own dinosaur world to explore what inside the dinosaur world by building the customized dino track. This makes race tracks for boys toddler more educational and interactive by encourage children to explore and discovery more rules by themselves Fish Tank Cleaner Fish Tank Siphon Vacuum Pump Gravel Cleaner Fish Tank... Xinyebingxue Fish Tank Cleaner, Manual Vacuum Siphon Perform incredibly well on most fish tanks (NOTE: Keep the water inlet higher than the outlet, and ensure the arrow-marked pump end faces down.) Aquarium Vacuum Gravel Cleaner Fish Tank Siphon Vacuum Cleaner Quick Water Changer Safe Aquarium Gravel Vacuum For Aquarium By rotating the cross-shaped handle on the top, you can adjust or stop the water flow instantly. (NOTE: For maximum flow, align the 2 green tips with the outlet port.) Perfect tools for aquarium water changing, sand washing, and glass or ornament cleaning. Efficient Water Changer: The aquarium water changer kit pumps water up to 15 gallons every 10 minutes. The gravel washing head greatly helps remove various wastes.