My new rosy boa should be on his way in the next couple of days. I think I have everything dialed in, but wanted to make sure. He is a baby so I am setting him up in a shoebox tub. Aspen bedding. UTH on a thermostat set to achieve 88-90 on the hot side, seems to be holding cool side close to 80. Two matching hides on the hot and cold end. Humidity holding at about 40%

I do have a couple of questions:
1. Breeder has him on like pinks, but I would like to feed f/t. Should i try to make the switch at the first feeding, or wait a few weeks?

2. I am going to be setting up an exoterra 24x18x12 for him when he gets bigger. I plan to use a UTH and CHE with it. Any advice on making the setup both visually appealing and comfortable for the snake?