I have an american tree frog, and she turned a dark green color and won't move anymore. She was moving really slowly and sleeping a lot for two days before. She's on the floor of the tank. She's not belly up though so I don't know if she's dead. A bit of her right foot looks a little shrivelled so I don't know if that's a good sign or not. I don't know if she's hibernating or not, if she is, then what am I supposed to do?