I have had my derasa clam for about 4 months now... had him under t5's and he lost some of his color when first introduced him to the tank but i assumed this was from the transition MH to T5. anyways he was looking pretty happy, i supplemented him with reef roids, live phyto, and a couple other filter feeder foods for him and the corals. but this morning i woke up to him completely hollowed out, and one of the snails i picked up last week crawling around inside of him. anyone know if this snail is responsible for the loss? My LFS said this guy was reef safe and only interested in algae, but I'm about to boycott this store if they misinformed me again! any thoughts would be appreciated.