Atrium (Black 4152) Immediate Shipping Formicaria and has a magnetic top

and has a magnetic top for easy maintenance

we will not be able to use this

For medium species nest

Magnetically removable vent (see photo)

as well as communicating with thousands of hobbyists and professionals during that time about ant care

Atrium (Black 4152) Immediate Shipping Formicaria and has a magnetic topSee More Information About the Atrium at this link. General Information: *****Due to the size of the open chambers, this formicarium is considered a small to medium sized formicarium and can hold an estimated 1,000 to 2,000 medium sized ants, larger species such as Camponotus, Formica and Myrmecocystus up to 1,000 (again, approximately). While it is quite possible some small species (Lasius spp.) will do quite well in the Atrium, estimating numbers