Hope your colony does well! How big are mini hearths? Because I might get one but I'm not sure if my colony is big enough. And your colony has 100-200 workers.
mini hearths are used by some as founding chambers, instead of the usual test tube setup, with varying success. some people say to wait till 10-20 workers until you move them in, some put just a queen in there after they find her for her to start laying eggs in, and they're modular with other mini hearths and the fortress i think
Edited by TBsupra33, June 4 2021 - 8:50 PM.
Ponera Pennsylvanica
Lasius Speculiventris
Lasius Americanus
Camponotus Novaeborcensis
Camponotus Pennsylvanicus
Tetramorium Immigrans
Temnothorax Curvispinosus
Formica Subsericea
Formica Pallidefulva
and several other Invertebrates! (tarantulas, shrimp, crayfish, isopods, springtails)