Casita III (3-sided)(Custom 3) ant farm I would recommend a medium

I would recommend a medium sized nest for them because the chambers and tunnels for the Pioneer are larger on average than  some of our other nests

3 sides (+20)

What comes with your Inception Chamber

See this fortress link for more information about this formicarium

Removable Vent Optional (1" opening accessed by removing a second magnetic lid on the main lid)

Casita III (3-sided)(Custom 3) ant farm I would recommend a medium***Casita Type III *** *****This product comes with Museum Glass Included*** For more information on this product, click this link. Features: Black Exterior Premium Graveyard Foraging Area Small tunnels and chambers 4 levels White Sand Interior 2 Nestmates 3 sides (+20) 3 water towers Museum Glass Optional Add On Package Optional