Tarheel Ants Casita Formicarium
We could fill the whole blog with formicaria from Tarheel Ants, they're that good.
Shown above is a recent photo posted on their Facebook page of a fantastic Casita formicarium with a developing colony of Aphaenogaster fulva ants.
Unique from their other formicariums by featuring 2 or 3 adjacent sides that showcase the nest, these fairly compact formicariums are perfect for small to medium sized ant colonies.
Pick one up direct from Tarheel Ants here. Priced from around US$75.