Hearth (Dark Blue 103) keeping ants 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

One stopper

Desert Décor (+$10)

Mystic Black panel/base combination

Nestmate - this Mini Hearth ($5 value) comes with one nestmate (See photo)

Hearth (Dark Blue 103) keeping ants I would recommend a mediumThis product is available for immediate shipping and is shown in the accompanying product photos. Click on this link to see more about this product. Features: nest is 3" x 8" (75mm x 200mm) Premium Grassland Decor (+10) 2 large water towers Stalactite decor on interior Type III material Museum Glass Optional