That works with a lid on, but how will you feed them without removing the lid?
I am pretty sure that they will not be always on the lid, plus you can just dump some that have escaped back in
Currently keeping:
1x Formica subsericea, 35-40 workers + maybe eggs
1x Crematogaster cerasi, only queen now, workers ded
*internal screaming*
1x Myrmica ruba sp around 10 workers + pupa
*New* 1x founding Camponotus pennsylvanicus + eggs that die (probably infertile)
*New* 2x Camponotus nova, one is infertile
*As you watch your ants march, remember that every thing begins with a small step and continued by diligence and shared dreams*
-A.T (which is Me)