Re: Red-Eyed Leaf Frog/Red Eyed Tree Frog Care - Agalychnis callidryas

I recently bought two adult red eye tree frogs from a reptile expo. one is doing fine, the other has not been active at night..just staying in one spot. i decided to bring him to the bottom of the tank tonight to see if he would eat because I was concerned. i discovered an odd circle/square like area on his leg that was brown...i was wondering if it could be a cut or bruise. i dont remember seeing this when I orginally got the tree frog. i was wondering if the two frogs could have fought? and if it being brown means that it is an infection? i did take a picture of him. i would really appreciate any knowledge of red eye tree frogs cuts or if anyone has any idea what this is and how to cure it.