thanks for the advice, I'll try boiling the flat ones and just using hot water to rinse the others. His tank is kind of a beachy theme, palm trees and a tiki man thing he likes to sleep in
so I thought some shells might look neat in there, I'll make sure they dont have sharp edges. I have this huge conch ( i think thats what its called) shell that I was thinking about using once I get him a bigger tank. Its big enough he could easily go in it and hide. Do you think this is a good idea?