It will not collapse if it has some clay content. Basically, if you can roll it into a ball that holds its shape, you’re good. The bigger issue I see is that if you have Tetramorium immigrans, they will outgrow that in a month or less.
Really? Wow...
Assuming you can re-use the nests, I have other colonies that can go into it- I just need a nest that arrives quickly because the Tetras are currently trying to nest in the dry sand under a rock (the sand is not even thick enough for them to dig into, but their old test tube is moldy, and they are tunneling into the cotton) instead of the fresh tube I placed out for them. The queen is wandering around the "outworld". They are currently in a tubs and tubes setup. I do have a THA mini hearth but I've read that tetras don't like the vertical ones, and i only have a vertical one.
Edited by Swirlysnowflake, October 9 2020 - 5:10 PM.