A year ago, I bought a fighting conch, dropped her in the tank and she disappeared under the sand, as I expected her to. A day or two ago, she reappeared. Now, over the year I started dosing carbon and cleared up a lot of algae issues I have, which was one of the reasons I got the conch to start with. Perhaps I did so well that the conch has nothing left to feed on. Should I be concerned with her wandering around out in the open?

