Lee's Gravel Cleaner - Small (9")Water changing is an important part of keeping your aquarium clean. Fish waste and excess food settle on the bottom of the tank in the gravel and substrate. Using a gravel vacuum you can easily remove the debris from the bottom of your aquarium, while doing a water change at the same time.Key FeaturesSelf-start siphonWide-mouth nozzle - increases surface coverage by about 20% enabling faster, more efficient cleaning with less water usedUse regularly to keep gravel cleanEasy to useUltra hose clip includedSize: 1 5/8" diameter x 9" long