Hi. I am new to tree frogs I have had fire bellied toads for over a year now and decided to upgrade and have two tree frogs as well. The one is doing great but one of them has just this past day become very splotchy in color...varying from almost a white green to dark green. He also has not been eating and doesn't curl up to sleep. He just sits on the ground. I found him sleeping in the dirt with his mouth open and it was full of dirt. I am worried there is something very wrong. I put him in a separate tank with some water and 3 crickets to see if he starts eating. He has gotten very thin and bony. I am so worried. Any ideas??