Hi,
yes, at this moment, we have no bigger colonies of this species. only the smaller one with eggs, larves and <10 worker. If you wait 2-3 weeks, we get bigger colonies.
Formica fusca can you keep in corknests or ind sand/loam ground. I think it is better if you give sand/loam in the stone and the box.
perhaps you find a pices of dead wood for the box.
Is the lid only with small holes?
Greetings
Martin
