I don't own any RETFs, but I agree with elly and also think your little guy may be settling in. The fact she moved from one wall to another is good, so at least you know she's moving around. A good way to keep an eye on your frog's health is tong feeding them, let's you see how interested they are in the food, get a good look at their physical condition, and then you can be 100% positive they are getting what they need, too.