I don't dig into the sand bed though. Have you ever wondered why this Mod doesn't post all that often? I'm busy chasing after Dakar when he's doing all his experiments and breaking stuff....especially glass. Anyway, I just dust the sand surface....especially when Dakar dumps about a 1/2 cup of fish food into the tank by accident when there's absolutely nothing in the tank that can eat it. I had no choice but to vacuum for quite awhile. I'd think I got it all, and the next day a whole new crop would float to the front. Until we get fish back in the tank, I need the help of the vacuum and my cucumber appreciates a little extra help to. I think he's overwhelmed!!