Fortress (500 Grey)(Type III) custom formicaria We have raised one of

We have raised one of our best Monomorium minimum colonies ever in this formicarium and have several other queens starting out exceptionally well in them

Small/Medium sized tunnels and chambers

Nest Block Size 4x8x4 inches (100mm x 200mm x 100mm)

Medium/Large Species Chambers

Removable vent optional

Fortress (500 Grey)(Type III) custom formicaria We have raised one ofThis product is available for immediate (2 3 business days) shipping. See this fortress link for more information about this formicarium. Features: Grey Exterior White Sand interior Type III material Medium Large species sized chambers Savannah Decor Museum Glass Optional 95% glare reduction (Shown in photo) Removable Vent optional What comes in the box? Fortress formicarium (as seen in photos), nestmate, mini liquid feeder, 2 stoppers, connection