Some thoughts on snails with soft shells:
This thread talks about pH a little, which seems relevant as the only tank I'm getting this problem in does have low pH.
http://www.aquariacentral.com/forums.../t-205792.html
These guys are all about the diet. I have some crab cuisine that they talk about and can give you some, I think I'll try it too.
http://www.aquariacentral.com/forums.../t-205792.html
Meant to send this as a PM so you can delete if you wish.
