Mini Hearth XL (Bone 351) 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

5" (150mm x 65mm)

Foraging Entrances - Each side has separate foraging entrances that can be blocked with included stoppers

Red Interior

Magnetically Removable Glass

Mini Hearth XL (Bone 351) ready to ship formicarium I would recommend a mediumReady for Immediate Shipping, this Mini Hearth XL comes as shown in the photo on this page. ***Modular Design (for more information click this (link)*** Nestmates this Mini Hearth XL comes with two nestmates ($10 value) (See photo). For more information on this feature, watch this video XL 30% larger formicarium than standard Mini Hearth Foraging Area Dcor (as seen in photo) Museum Glass optional ($8) Included with this purchase is a syringe for