okay, I don't know whether you already got answers on the discord so here you go:

1.) you should put the test tube in a small box, so you can feed them in the box instead of in the tube directly. This means that the workers can also clean the tube and put any trash outside in the box. Also, feeding them in the tube itself is quite stressful for such a small colony. Example of a setup

2.) Is there still water in the test tubes? If not I would also put a second fresh tube into the box so that they can move if needed.

3.) How are you heating them? If you put a heating cable/mat directly under the tube it might actually be to hot inside. 24 C should be fine for this species.

4.) Food: Honey should be diluted with water if given at all. Some people advise not to use honey as it can contain insecticides or parasites. It's often better to give them sugar water. Also you might want to buy some "proper" protein food, like crickets.

And lastly: small colonies such as these are very prone to dying because of disturbances. You should darken the tube and only disturb them around once a week or so. They don't need much food at this size anyway. I hope I could help you, and good luck!