I have noticed my tortoise having a distinct line going through the bottom of his shell. Just recently it getting worse and peel a little. I have not touched or tried to peel anything off. Also it seems to be looking pinker. Just curious on what this can means. He/she is three years old, and I try to give him a bath every other day, no less than three times a week. I also rub vitamin e oil around his shell. If someone can let me know what does means and what I should be doing different to prevent from getting worse.
Thank you
Thank you