Casita III (Black 5024)(3 sided)(MQ Box) 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

Nestmates - this Mini Hearth comes with a nestmate ($5 value) (See photo)

Bone side panel

and a multitude of plastic plants

Casita III (Black 5024)(3 sided)(MQ Box) Fast formicaria I would recommend a medium***Casita Type III *** ***This formicarium is the exact one shown in the photos on this product page. Once purchased this product will ship in 2 3 business days.*** ***MQ BOX (+50) Cast Acrylic Foraging Box Material, highly scratch resistant and greater clarity. Magnetically removed lid*** Please visit this link for full details on the Casita Type III formicarium. Features: 2 sided (+20) Black Exterior Decor : Per Photo Medium Large tunnels and