My tank is currently under a fallow period, I’ve left my inverts in, a few small blue hermits, a big conch, a bristle star and I had a few snails (forgot the type) I had believed the snails to be dead until yesterday morning I saw this guy crawling around, then again this morning (5am central) but he looks different, almost like he’s growing a new shell. Can snails do that? The snails I purchased I’m sure were much smaller and had different shells.