UPDATE: The bleeding has stopped and he managed to finally shed the skin that was on his leg. In fact, he seems perfectly healthy now. No trouble climbing, wont stop moving, no signs of pain and looks as healthy as the day i got him 4 years ago.

Is it safe to return him to the vivarium with the other frogs do you think? I don't have any plastic plants or ornaments only live plants so all he is in now is a critter keeper with a water dish so i don't really want to keep him in there for too long.