dumpy white tree frog

Question
How can you determine if a dumpy white tree frog(DWTF) is sick? When getting him out to play today I noticed tiny green spots on his legs and back that hadn't been there before. He also seems to have a kind of film over his eyes, but I can't really tell. He doesn't seem to be climbing in his foliage as much either. I think he's eating regularly too. I give him clean water every day and crickets. Well, thank you for your time and get back to me if you can.

Answer
Frogs are REALLY tough!  Look for changes in the slime layer and feeding habits, then the question becomes: What do you do for it???  Check temps, check WATER!!! Clean water VERY important.  Any new plants that might have pesticides?  Stuff like that.