Just posted this on turtleforum.com but thought i'd ask here as well, as any help is appreciated.

Hi all,
I recently acquired an FRT from an online advertisment and was informed when buying the turtle that he seemed to have "something wrong with his shell". I now have the turtle in my possession and he's certainly seeming healthy enough but i can't help but worry about his shell.
The best way of describing it is that he has a peak in his shell and the rest is not as well formed, from what i've read online the only thing i can put it down to is calcium deficiency when younger. He's eating fine, and i feed him kiwi and banana twice a day (each with about 5 reptomin pellets in) and he is apparently regrowing his shell slowly (I don't know myself as i am currently away from home and have been for a few months).
My questions really are;
1. Have i diagnosed him correctly? Is it indeed calcium deficiency?
2. Is there anything else i could be doing to help recover him?
3. What are the chances he will "grow out" this shell morph? (He's about 5" / 6" shell size as stands - so plenty of time)
I have also included a picture my sister has sent me (excuse the quality,it's from her phone)
