I have had 2 White's Tree Frogs for about a month now. They are both about 1 1/2 inches long. They have been doing really good until a week ago. My one has stopped eating. He also has some stringy stuff (believe it is skin shed) coming off him. My other frog has been eating fine until today. He didn't eat at all. But he doesn't appear to have any shed coming off him. How often do they shed? How long does a shed take? And is it normal for them not to eat when they shed? Also they like to bury themselves in the ground. Is that normal? Any help would be appreciated.