Im a new aquarium owner a d we have moved up to a 20 gal tank. We had an African dwarf frog at first then I added 4 kuhli louch and 2 pleco. Things were fine then I noticed one of the louch picking on the other fish. Today I found my frog sluggish, not eating, and not acting herself. She had something white hanging from her nose that looked like skin and after looking closely I realized she was hurt. I dont know what to do to help her more than I already did. I removed her from the tank to a hospital thg ank but don't knkw what to use to help her heal. If anyone has advice let me know. My kid is got this frog for her birthday and I want to try to save it.