Will my little turtle get shell rot? How to treat it? Little turtle seems to have nothing to do with this. It still eats a lot every day and is very active.

I didn't see the picture. I'm not sure whether to change the shell or rot. Gently open the nail plate with a blade. If it is easy to take out the rotten and yellow hard nail plate from the bottom of the nail plate, it should be the poor water quality, which leads to the rotten nail plate of the turtle. Don't worry, if the soft powder under the nail plate can be cleaned up, it should be handled in time. The method is simple. Apply erythromycin to the affected part of the tortoise first, then pour Yunnan Baiyao powder, and then gently apply it. Until it doesn't stick to your hands. Dry it during the day and put some water at night. Pay attention to put enough stones above the water in the fish tank for the tortoise to rest. Wash rotten nails repeatedly, and then apply 10 for about 0 days. I wish your tortoise a speedy recovery!