These have potential for founding nests in place of a test tube. So cheap.
use two per nest. One at the bottom for the water tank, drill a hole to the top, cotton glove finger cut off and stuffed with cotton wool for water wick etc inside a vinyl tubing, maybe hot glue a mesh on top, so the ants can place brood on top.
Small hole in the side of the tubing for ants to drink
Or use them as a water tank under a petri dish founding nest
20-30 Aussie cents per container
https://www.ebay.com...ar=571496719123

Edited by CoolColJ, June 21 2018 - 6:04 AM.