redfoot shell

Hi Everyone: New user here trying to figure out what is going on with two of our tortoises. Two of them are developing these white lines on the shells at the joints (see pictures). What is this? What is causing it? How do we treat it? Thank you!

Hi all first time posting my Redfoot Beary has been showing signs of what I suspect is shell rot my vet has told me that it could of been scarring but this is spreading and I’m worried for my tort. We have another visit this week but I’d like to hear from y’all as well. the enclosure is never...

I discovered shell rot on my guy yesterday; there was a lot of the white substance I’ve read about and I immediately went out to get an antiseptic cleaner, providine iodine, and antifungal ointment. Today the white stuff seems to be gone but this black spot remains - is this serious? It’s not...