Used test tube formicarium for sale - $20
As I continue to develop my formicarium ideas and create more prototypes, I just don't have the room for any that I don't use.
The case this is made out of is one of the BoxBox brand cases I'm designing all my formicariums out of. The lids are friction-fit, and fit very well; not even the tiniest ant can get out of these things.
It has attachments for two different size test tubes (test tubes included).
I can put a thin layer of Hydrostone in the bottom of the out world also if requested.
It comes with everything you see here.
Here it is with my Pogonomyrmex subnitidus colony living in it before they out grew it.