Update 1-17-2021I still have all four colonies. Of the three in the plastic modular
formicariums, I don't even remember now which one was the newer one, and which two were from three seasons ago. I have added two new chambers to each of the three by now, but recently they have been removing fungus much faster than growing new for some reason, so two of them have multiple empty chambers now.
This is the smallest colony. They decided to remove all the fungus from the first chamber, and now are removing it from the third. I thought maybe if there was some problem, they would start growing it in the new chamber (doesn't look so new anymore), but so far they have not. The chambers in this nest for some reason are remaining extremely wet, and I can't figure out exactly why. I think it might have something to do with how high I am keeping the water level in the water tank.
This is the second largest. They have cleared out one of their chambers, and are working on another too unfortunately. I hope they start growing some new fungus soon.
This is the largest colony. Thankfully they haven't cleared out any of their chambers. This colony for some reason always insists on putting stuff in the new chamber I gave them. Before they were putting all of their garbage in there, which actually made it a lot easier to clean out. There were hardly ever very many ants in it, so I just had to remove it and clean it out, as opposed to opening the foraging area where there are always tons of ants. Lately, as you can see, they have now decided to start storing all of their substrate in there too. This is a very stupid idea, because now it is all starting to mold. I don't know why they keep doing this, but I wish they would stop.
Once the next possible
Acromyrmex flghts are only a few months away, I'll probably sell the smallest one of these colonies, assuming I still have all three.
Here are some new pictures of the colony living in the 10-gallon dirt setup. I took pictures of all four sides.
It's fun watching this colony, as it acts very much the way they do in the wild. The most interesting thing is the nest structures. One day I will make a setup like this that has the entrance in the center of the foraging area. This way they will be able to make their entire mound.