This is a set of useful parts that I use when the size of the current formicarium is not sufficient anymore.
It is designed for 160mm x 16mm test tubes and tubing with 14mm outer diameter.
Entrance
The entrance part has open holes for the ants to enter or exit the expansion.
7 test tubes can be inserted for the ants to enter.
Support
This part is used to support the back of the test tubes so that they all stay aligned and level with the entrance.
Spacer
The spacer can be used to fixate the distance between entrance and support so that the 160mm test tubes do not become loose all of a sudden.
Connectors
A collection of tubing connectors compatible with 14mm outer diameter tubing and the entrance part.
Terminators
Two different terminators can be attached to tubing so that the way is closed.
The author marked this model as their own original creation.