soft carapace

I just got this redfoot Sunday from a “puppy mill” type of pet store. I was browsing the aquarium section for my betta fish a new snail, and saw this redfoot in a tiny 15 gallon glass tank with the heating element over its hide and the water bowl and food bowl taking up the other half of the...

I've had my Burmese Star hatchlings for a couple months. I noticed this week their shells are becoming soft, some more than others and it worries me. What can I do to make it better? Tortoise #1 (Kross) - very soft carapace/plastron, lethargic, not eating #2 (Jack) - soft carapace/plastron...