Aqua Culture regular size Gravel Vacuum Cleaner. This works great to clean out your fish aquarium gravel. It vacuums out the debris without pulling up the gravel. It has a self-start siphon all you need to do after inserting into the water is shake it up and down a few times and vacuum away. Just make sure you have an empty bucket at the end of the 72" hose. This item is unused and still in the original package.