hi, I started a 92gal bowfront with coral and fish. I ended up getting ich really bad and to the point that I gave my nephew all my fish so he could treat them with copper. since he had no coral and does not plan on it in the future. I had three snails a the time. I read that it takes about two months to starve ich. so I left my tank free of fish for two months but in the meantime my snails mass produced. It got so bad that they were leaving brown ? all over my tank. since then I moved and I started another tank that is 30 gallons. I used some of the same rocks and the snail problem is back. The brown substance is covering the algea on my rocks. I currently have a fire shrimp, coral banded shrimp, 5 small crabs, 2 large snails, foxface and a bi-colored angel. is there a fish I could get that will not hurt my corals that will eat the snails and whatever they are produceing (probably eggs). Also what is a proper clean up crew consist of. thank you for any comments that may come up.

