Pisces Gravel Vacuums are simple to use and very effective due to the design. Each vacuum features a shut-off tap, allowing you to stop the siphon and continue with ease.
Place large end in the water and move the tube back and forth to achieve a siphon. Gently push the tube into the gravel to draw out the sediment and debris. Turn off tap when your bucket is full and empty. Only siphon 20-25% of aquarium water when performing a water change.