I captured them while they were migrating nests. I got 4 queens and 20+ workers.
At first I kept them in a pickle jar:

About a week later, I decided to try to move them to an outworld/hybrid nest combo:

It looked like they had produced one pupae, which this worker is trying to move out of the jar and into the outworld!

Unfortunately, one of the 4 queens died in the pickle jar, so I was down to 3 queens. I also lost some workers during the move.
I transferred them directly to the outworld, with tubes leading to the hybrid nest. I thought they would go straight for the dark, humid hybrid nest, but after several hours they had only explored the tubes and decided to stay in the outworld. I thought I would add a small piece of tree bark that I found to add some aesthetic. Naturally, they ALL moved into the tree bark! This was unexpected and a little frustrating. After about 1 week in this setup, the ants had still not moved to the hybrid nest. Also, I was losing workers in my Vaseline barrier. I decided they were not ready for such a large space. I moved them into a test tube setup. I put one of the queens by herself in a test tube and the other 2 along with the remaining workers in a test tube + test tube portal. This move was on 5/4/2019.
After another week went by, I saw that they had still not laid any eggs. I thought for sure with 3 queens, I would have a lot of eggs by now. After some research, I decided my office might be too cold. I bought a heating cable online. While I waited for the heating cable I didn't check on the ants for 2-3 days in a row. When I finally checked on them, I found they had laid a few eggs! Now I am thinking that I was just disturbing them too often and keeping them too stressed out to lay eggs. I have installed the heating cable anyway to try to speed up the colony growth.
Today, when I checked on these ants, I saw that their cotton in their test tube seemed to be growing some mold!

Does anyone know what might cause this? Is it dangerous? Is it common?
I am currently trying to get them to move to a clean test tube.

But they are taking their sweet time

Let me know what you think. What could I be doing better? I will update you all on the progress.