Hi, congrats on the new frog. Husbandry wise everything besides the humidity sounds ok, so I'm thinking hes either just settling still or maybe hes full from when he was at the store. your humidity shouldn't be that high, anywhere in between 70% to 80% is all you need. I keep my tanks at 75%. If you haven't covered three sides of the enclosure yet this is something that will help settle him faster. If he hasn't pooped since you got him he could be full and needs to go to the bathroom, if you give him a soak in some warm declorinated water for about 20 mins sometimes this helps them go. But I honestly think that if you haven't had him for more then a week hes just settling still. Some of them will settle and eat right away, and some of them take a few days to week. They are all different.