I don't remember seeing bright orange or yellow marks on the legs so I don't think hes a gray tree frog. I don't own a camera at the moment. He does seem to soak at night because when I check in the morning the dish looks like its been used. I'll put the crickets in the bowl to find out if he is eating or not. If he isn't eating I'll have to look for a vet to find out why he is sick. I'm not sure if my ferret's vets office deals with frogs.