Labyrinth (Bone 1) custom 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

The nest block is made of a very hard material similar in functionality to concrete or plaster but much more amiable to your ants living conditions

1 plastic plugs

Woodland Great Tree (+10)

foraging area decor

Labyrinth (Bone 1) custom formicaria I would recommend a medium*This product is ready to ship. Ordering this product you will receive the exact formicarium in the photo.* See the Labyrinth formicarium original product page here. Features: Dimensions 5x7" Nest (125mm x 175mm) and 4x8x4" Foraging Area (100mm x 200mm x 100mm) Medium Large Species size Water Towers 2 Removable Vent (Optional) Museum Glass (Optional) Bone Color Desert Foraging Decor (+10)