Update: 29.10.18: I added a remixed, flat Formicarium (original: https://www.thingiverse.com/thing:2895196 ) for better viewing experience. The connector matches to the outworld for an easy plug-and-ant experience and I added a hole and a 16.5mm test-tube connector for your young colony to attach or to attach a water source.
A totally remixed version of an ant farm with arena, formicarium and water feeder.
There are 2 sizes of holes, as in the original: front right and the left one are smaller ones, the two back right are bigger. I made everything with PLA and 2mm hobbyglass.
My Lasius did not yet move out of the test tube, so I still can't review the formicarium. Plus I do not have the water place in use, because they are still able to drink from the test tube.
The outworld is highly accepted and has now 3 feeding areas instead of the original 2 and a front window.
For the plugs and the optional test tube pieces, please check out the original Ant Arena.
It might make sense to print the formicarium in a brighter color than I did, it feels pretty dark because of the vertical structure, I'm not sure if I will be able to see the ants very well on a dark background.
Highly appreciate some makes or changing requests.
HAVE FUN! :-)