Does your lmb eat prepared foods. I couldn't get mine to eat anything prepared. He won't even eat dried sea weed. So I cant keep my tank too clean or he will starve. He starts every morning with a sunk in belly and ends every night looking like a balloon. He also defecates the size of a small bear. But he has so much personality I wouldn't want to be without him. He takes about a dozen bites off the rocks, sand, or snails/hermits shells, and then goes and kicks his own butt in the glass reflection for 3 or 4 minutes and then the cycle continues. Yours is also very dark, does he lighten up or stay that dark?