Any little movement kicks up a whole bunch of sand and I have to get it off my zoas and ricordias aand brain, making them close up. Also, since the tank is so small, I have to be careful with flow or else there's a sandstorm. As a result I have a coulple of dead spots, not matter how I position powerheads. I was doing a water change yesterday and when I syphoned the sand, some nasty dark crap was just under sand top (smelled like rotten eggs). I have a couple of niss. snails but they dont seem to be stirring the sand very much. So my is flow and as a result, sandstorm, deadspots, etc. I didnt read up on barebottom until after I started :-/.