The kind of ant farms that the curio is modeled after often don't have queens in them and the colony dies out eventually. I propose taking queens out of the recipe and adding a second kind of ant farm that is not a curio, uses queens, and can be fed and harvested for more ants. Aphids would have to be introduced, but afterwards they will reproduce. The food the farm takes would be similar to a compost bin. If anyone thinks the current ant farm recipe is too cheap, the harvestable one could require every kind of ant.
PS: worm farm??? beetle farm??? any other kind of insect/bug farm??? spider webs crafted into spider silk fabric????