I have two Paramesotriton Hongkongensis that I just bought from a pet store about two weeks ago. About one week ago, the female's back left leg started to swell. At first I didn't see any open lesions so I wasn't sure what was going on. Now there is a large open sore on her foot and I assume it is limb rot. I moved her to a small hospital tank and I'm doing daily water changes. I'm also medicating the water to try to stop the infection. Right now I am using API General Cure because it's what I had on hand. I have ordered Furan-2. Are either of those medicines dangerous to use with an amphibian, and/or is there something that would be better to use for limb rot? Also, she doesn't seem to be eating. I keep offering her food but I haven't seen her eat.