XXL Mini Hearth (BF)(Beige 3512) ready to ship formicarium What does add a second

What does add a second side mean

Foraging Area Decor Optional

Grey Exterior

the material holds a charge for hours and offers a unique view of your ant colonies in the dark***

XXL Mini Hearth (BF)(Beige 3512) ready to ship formicarium What does add a secondFor more information on the Mini Hearth XXL click here. Features: XL Water Tower Dual Chamber, Stalactite Interior Decor MQ Acrylic Foraging Area (with magnetic lid) 2 Nestmates Magnetic Ports on each short side for attaching other Mini Hearth Modular Units. Painted side panels Museum Glass (optional) 3 8" ports on each short end for connecting to other habitats What comes with the Mini Hearth XXL? 2 Nestmates, 3 stoppers (3 8"), Syringe and blunt tip