It should be good for her to eat the leaves from what I read in books. One thing though with the ficus plants is to be careful of any broken branches. If you ever broke one of the branches off, you should see a white sap like liquid start to come out. Make sure your cham doesn't touch that because it can be mildly toxic to them. Be sure that it is dried up before your cham gets near it too. Besides that, ficus are great. Alot of people like to use ficus or Hibiscus trees. I prefer the Hibiscus because of the flowers and if they are eaten, they have medicinal properties. Plus you don't have to worry about the white sap you get from the ficus.