Nucleus (BF)(Bone 3880)(MQ Box) Fortress Single Large Chamber w/ rock

Single Large Chamber w/  rock interior

"Bottom-Up" design - Both the Fortess and the Stronghold formicaria were planned so as to have a different arrangement of their nest and foraging area

It features a 4x4x3 nestblock with 2 levels and an attached 4x4x3 foraging area via magnetic connection

5"x7" Sand-coated nest

Nucleus (BF)(Bone 3880)(MQ Box) Fortress Single Large Chamber w/ rockThis is a Black Friday Cyber Monday 2025 Formicarium For more information on the Nucleus III click here. If you are ordering the product on this page you will receive the formicarium shown in the photos along with any options you choose Includes Nucleus III formicarium and all accessories. The Nucleus III is our proprietary Type III material Optional Museum Glass Optional Removable Vent (Lid on a lid, exposes a 1" opening) 3 Water Towers for long term