On second thought, maybe I should just remove the sand bed altogether. I'm sure I could do it safely by just removing the water from the sump and scooping out the sand. This will probably help remove detritus buildup problems and stuff. Or would this not help and mess up nitrate removal? Again, I don't have any animals like fish in the tank that I feed so nitrates shouldn't be high to begin with but I could be wrong. The last time I checked nitrates they were at zero.