Ok. That's good. You need to measure that heat pad though. They can spike over 100 degrees and that is very harmful to you baby.

Hmm. A bin? Maybe it is too big. If he is a hatchline a 42 qt tub is a little large. Did you try putting some plants and things in their to crowd it up? Maybe try that. If you change her home, she needs one week to get used it, and then try to feed her again. A mouse hopper this time.