Mini Hearth (Bone 5535)(MQ Box) 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

Woodland Decor Premium (Onyx)(+5)

Choice of side panel color

No water tower

Acrylic Top

Mini Hearth (Bone 5535)(MQ Box) ready to ship formicarium I would recommend a mediumReady for Shipping, this Mini Hearth comes as shown in the photo on this page. 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) Magnetic Ports for Expansion (Additional Mini Hearths Can be Connected On Each Side) Magnetic Glass Panels (Museum Glass optional) 2 Connection ports on each short side, Nestmate Ports in the back (3 8"