Fortress (Type III)((Grey 142) Founding formicaria This will allow you to Single Chamber w golden This will allow you to use the nestmates as ventilation points and create a more defined moisture gradient at times during the colonies life within the nest for your dryer inclined species I recommend strongly you become familiar with the proper use of the nestmate device ***Type III Material This formicarium is Type III material designed to be harder than Ytong and more resistant to destructive ant species such as "fire ants" and "pavement ants" it also maintaints a higher humidity (all other things constant) versus our Type I material