I have way more of these than I need now, so I decided to sell some of them. There are two sizes. The larger ones have enough space to fit a Myrmecocystus mexicanus, or a large Camponotus queen, and the smaller ones will fit most other average or smaller-sized queens. They are both made from the same containers and have the same dimensions. The only difference in size is the space between the walls and the inner container.
I've had amazing success this year with my Myrmecocystus and other species being reared in these things.
They have escape-proof lids with a 3/4 inch circle of fine mesh for ventilation. They already have dirt still inside the tanks. The dirt should be left inside the tanks, to hold the moisture.
They're not perfectly clear anymore, since they're used, as you can see in the pictures.
I'm selling them for $5 each, or 5 for $20. I probably have about 30 of the large ones, and only a few small ones.
Two small and two large
Large
Small