You might have better luck with a smaller inclosure. A deli cup with a paper towel instead of aspen, fold it a couple times place the pink inside a fold and have the temp around 80 +or- a few degrees.
I use a small deli meat container with a micro cloth, but you can use a paper towel also. It also doubles as a wet hide. The bigger containers seem to bother some Hog's, I've have one Hog that likes to eat this way, the others it really doesn't seem to matter.
Mine seem to really like being inside a fold or underneath it completely.
I have a doorway cut into mine....you shouldn't do that if you are going to keep it in there. I use this as a wet hide and it's inside a shoe box container....
Hybrid Mode
