Mini Hearth (Light Blue 818) ready to ship formicarium 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

Light Blue Side Panel

Desert Tree Foraging Area (+10)

Grassland Decor With Brown Sand

Small/Medium species

Mini Hearth (Light Blue 818) ready to ship formicarium I would recommend a mediumReady for Immediate Shipping, this Mini Hearth comes as shown in the photo on this page. ***Modular Design (for more information click this (link)*** Nestmates this Mini Hearth comes with a nestmate ($5 value) (See photo). For more information on this feature, watch this video Foraging Area Dcor (as seen in photo) Museum Glass optional ($8) Included with this purchase is a syringe for hydration, Mini Hearth PDF guide, nestmates and stoppers, lid, and