Update 9-16-2020
I'm own to just three colonies from the queens i got this year. The largest has about eight workers. I have this colony in a little experimental setup I made with a piece of rotted pine.
This is when I first made it.
This is months later.
You can see how much wood they have dug out of it. They have been dumping it all in the back.
I'm not sure if the moisture is right or not. They had some brood at first, but I don't see any now. They have also lost a few workers.