Congrats on picking up your new guy...

If you need to bring down your humidity, make your holes a little bigger so they vent better.

If you want to feed F/t, then don't offer a live this week. Wait about 10 days to settle down and realize he's hungry, then offer F/T. I've found the secret to F/t is a good pre-scenting. Use a blow dryer on low to just kind of blow the smell at the tub. for a couple of minutes. You will know when he smells it. Then put the blow dryer on high and hit the thead of the rodent for about 30 seconds. When you open the tub, open it only enough to get the prey in.

Here is a video, where Adam Wysocki discusses feeding techniques, but the pre-scenting was what finally got mine to take F/T...

YouTube - 8 Ball Pythons - Feeding Lessons