Hellooo everybody,
foraging is a good pointer for how hungry they are. Small colonies stay inside the nest for most of the time when satisfied, bigger colonies tend to always have some foraging going on - they get VERY hungry, and probably just will grab anything they can
As for death rates: I couldnt figure a "healthy" rate yet. Jimmy impressed me by having near zero losses in the first time, i didnt have that luck, but admittetly had some problems getting the right ammount of nest moisture. The workers are definitelyquite shortlived, and the "cemetry" does need regular cleening to avoid the attraction of parasites. I found that the arena substrate is best kept a bit moist, seemed to reduce the rate at which they perish and avoid the phenomenon of them biting off each others gaster.
How many "soldiers" in what sizes does your colony have? While workers are shortlived, soldiers live a lot longer. In nature, i would assume them to be the most obvious prey to any predator available, in captivity, theyr number keeps rising. Especially major worker seem to need a lot of ressources and time beeing tended to. If you feel they pile up to an much, reducing theyre numbers is a good way to give the workers time to tend the important next generation. Too much of an imbalance between workers and queens, males and soldiers killed quite a few colonies already , so constant observation seems a good idea. Never give them a chance to dig in anywhere, they pile up substrate even on the surface to make chambers. I learned the hard way, and my colony shrunk down to a few % of the former size.
You could try taking a picture of the full colony. Most of the time workers are almost invisible if the distance it too big, so it gets a bit tricky. To avoid to much of a reflection on the glas, use semitransparent paper in front of the flash.
This is my colony as of two weeks ago:
Part of the brood is in the depth of the field. I assume it was around 300-600 workers around that time. i gave up trying to estimates their numbers a long time ago
@Ashton: good to hear that the ammount of brood is growing! Now if your workers stay alive till the first of the new offspring hatch, your on a good way up. how many of them are there?
Also, i gave the lenses another try:
I was like

when i saw the result on the computer screen.
Hope you didnt mind me throwing in the pictures,
Greetings,
Necturus