I've actually caught one of the little guys tonight! About a 1/16" leg span:
I'm going to buy one of those clear plastic dresser drawer shelves to store the individual containers of babies in. I probably can't ship them over winter even with a heat pack and overnight shipping (maybe I can) so likely I will be caring for the pups all winter.
Now that the main tank is flooded there are more babies that I can see. Not sure how many, and if another female has pups well...
But at least this way I can pull out a drawer, pop all the lids, drop in food and turkey baster in some more water and pop the lids back on in an efficient manner.