I have had my little guy since September 18 2014. He was the second frog of the three to be purchased. He is a bit of a daredevil and tries to jump onto the ceiling of the terrarium and almost always fails; but for the past 3 days he hasn't moved from this one spot on the glass. He is usually very active both in the night and the morning. I have not seen him eat. I don't see any new fecal matter from him and the way he holds his leg is kind of limp. He has also stopped chirping. I have looked into vets around my location and the majority of them do not handle amphibians. There is the one the pet store uses but they do not care for green tree frogs. I am unsure as to what my next step should be. I'm worried for the little guy. Any help would be greatly appreciated. Thank you in advance.
*Edit the terrarium has been changed up a little bit I will post a newer picture also his name is Wesley Wyndam Pryce*
*Second edit. It is his left leg.*