Mini Hearth, Bifurcated (Bone 707) Fast formicaria 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

***Canyon Foraging Area - +$10***

Premium Forest Underbrush Decor (+10)

All options (not including Glow material - $10 additional) for Mini Hearth are included

Mini Hearth, Bifurcated (Bone 707) Fast formicaria I would recommend a mediumReady for Immediate Shipping, this Mini Hearth comes as shown in the photo accompanying this product. ****Bifurcated Mini Hearth 2 levels This is optimal for tiny and small ants, SOME medium ants as well. Not recommended for larger ant species such as Camponotus pennsylvanicus or Camponotus castaneus.**** This is a large area for a colony of tiny or small ants. The extra level will be appreciated in terms of living space for a growing, small colony.