Should I get a 3D printed nest or a Y-Tong nest?

Typically, whichever one you prefer! You can usually just choose whichever nest you like the look of more, however, here are some difference between the two: The Y-Tong nest will retain moisture for longer than the 3D printed nests, meaning you will have to water them less frequently. They are also larger and can contain more ants. The Y-Tong are built to stand up on their side, however they can also be laid flat. The 3D printed nests must be laid flat. Finally, bull ants will not fit in the Type A (red) Y-tong nests.