Fortress (Type III)((Terra 6333)(Vermiculite) Fortress this option includes two additional

this option includes two additional nestmates and a stopper for switching them out quickly

Black Exterior/White Sand interior

not the normal 2-sided version for the Casita Type I

White Sand Interior/ Dark Green Exterior

Fortress (Type III)((Terra 6333)(Vermiculite) Fortress this option includes two additional*****This is a Black Friday Cyber Monday Formicarium***** *****Vermiculite Interior Formicarium Vermiculite Is Coating the Interior Chamber of this formicarium(+$10)***** ***Please NOTE: You are ordering the formicarium in the photos on this page.*** See this fortress link for more information about this formicarium. Features: Type III material Decor and Color per photo Museum Glass Optional 95% glare reduction (Shown in photo) Removable Vent optional