Okay, so a couple days ago, Lou-Lou changed shells. I posted it somewhere but I don't know is you saw it. Well she changed from Ocean's first shell [Lou-Lou's fifth shell (if you count every time she changed shells with me)], which was too big for Lou-Lou into a smaller one, Lou-Lou's second and fourth! The one Lou-Lou was in before, Ocean's shell, somehow got under the water bowl. So yesterday, when I went to change their water, Crusty discovered the shell, and I SAW him change into it!!! He took ages because he was trying to get into a comfy position with the shell, but when he did it, it was so cool! I couldn't believe he changed because he loved his old shell so much!! Then, when I was asleep, Lou-Lou changed into Crusty's old shell!!! I could only tell who was who because Lou-Lou is more purplish than Crusty and has a mark on her head, while Crusty has brown eyes and has different coloring, and their personalities are very different. So, in the non-confusing way, Crusty and Lou-Lou switched places!!!