Okay, so I started out feeding my RT a huge handful of her spring mix/other green every morning. But, in the afternoon when I open the cage she comes running looking for food and even tries to bite my fingers thinking I have food. Well I think this means she is hungry so recently I have been feeding her twice as much- one big handful in the morning and one big handful in the afternoon. How do I know if I am feeding her too much or not enough??? I am afraid she will be overweight, but I don't want her to be unhappy or underweight either. Also, it seems like if I do not feed her in the afternoon she just hides in her log and is unhappy. What is the right ammount to feed?