Ok you are right, there some shed skeletons. A few black worms. I started with 8000 worms in several bins. They are bedded in 4 -5" of a blend of oat bran, wheat bran and oatmeal. Once a week they get either a slice of good quality bred, yam slices or apple slices. There is always food available...
So, my bins have lots of now deceased beetles and deceased worms in lots of strata (about 4-5" deep) There are still some live beetles left. How long until I will see baby worms?? Seems like it has been a while now with nothing!!!