Fortress (Type III)(Dark Green 2109)(Golden Vermiculite) Founding formicaria The chamber sizes will be

The chamber sizes will be smaller from top to bottom (see below) to make the interior nest size more amenable to the smaller inhabitants of the XXL

RedExterior

Micro-fine stainless steel mesh vent

Small-Medium species chambers

For Medium-Large Ant Species

Fortress (Type III)(Dark Green 2109)(Golden Vermiculite) Founding formicaria The chamber sizes will beThis product is available for immediate (2 3 business days) shipping. See this fortress link for more information about this formicarium. NEW FEATURE: Replacing the normal sand coated interior, this formicarium has a vermiculite interior. Vermiculite has special properties of moisture retention. For years it has been used as an incubation material for captive breeding of reptiles. It also has a naturalistic look, a darker substrate with some shiny