Sherri - you might want to consider a Fighting Conch. We got one for our sandbed, and I'll have to say I am
very impressed with their cleaning abilities. They stay on the SB (not on rocks or glass) or burrow into the SB, and keep it CLEAN! Within a week of adding it to the tank, there was a noticible difference. We have nassarius snails also, but with a larger tank, we would've had to buy either a massive amount more of the nassarius, a SSS (which I was worried about putting in the 210G after reading about their feeding needs) OR the conch...I'm glad we settled on the conch. ;)
W.
