I hope you are doing well.
Usually, when I have to move my colonies, either to a new test tube or nest, I connect the new test tube covering it with a black blanket, exposing the old one to the natural light.
This has been the best way to force colonies to move. I have tried heat, lamps light and other but they didn't work well.
However, with Myrmecocystus, I have experienced sudden death after moving probably related to stress (?)
Do you have a better less-stressful way to migrate a Myrmecocystus (Mimicus) colony to a new test tube? I need to move it since the current test tube is out of water. I could connect a new test tube as a water chamber but I don't have enough space for that setup.
As always, your advice will be appreciated.
Have a great day!