Got a Mr. Cleaner battery powered gravel cleaner. I'm happy with the versatility.
Does a good job of cleaning the gravel without suctioning out the water from your tank. Instead it filters it through a little white baby sock and puts it right back in.
*You can make it shorter or taller as you like by adding or removing the pipe or gravel head.
*You can add a knee high panty hose sock to the filter sock for extra filtration as needed. (I recommend this.)
*You can use it for water changes, to add or remove water, just stick on a tube.
I'm just glad I don't have to traumatize my fish anymore while cleaning the tank. They'll swim right up to it.
Also comes with an algae scraper.