

Shell help
Hello, I have had my little guy for about 4 years now. He had a small spot on his shell when I got him and with better care it went away. I just recently noticed his shell started to look bad again, is this dehydration or maybe shell rot. Can I treat this with chlorahexadine and if so where’s the best place to buy some?
For context he gets romaine, dandelion greens and collard greens every other day. He also gets a calcium supplement without D3 two days a week and then a multivitamin every other Sunday. He gets fresh water to drink and or soak in, and had a basking spot that sits around 90-95 and a cool side around 75. He also has a linear uvb. He gets outside time at least once a week if not more. Am I doing something wrong with his care that could be causing this ?