Thank you! We plan to try using horse dung since a friend of ours has lots readily available.
Thank you! We purchased them online. I read that they could be found in Michigan, but in all my years of looking for bugs in our hot summers, I've never seen one.
Thank you for the info! They currently are in a tank with about 8" of substrate, mostly coconut fiber but with some soil, sand, and leaf litter mixed in. We have yet to give them any dung but we will soon. In the mean time we have given them some "beetle jelly" but they don't seem to have touched it. They usually sit in their burrows for most of the day but sometimes a few can be seen walking around.