Congrats on the spawn, according to THIS profile on TFF the young can spend several weeks clinging to the mother. Also they are cannabalistic, so watch out for the mother eating the young, best to remove them to another tank I would have thought when they are free swimming.
well today we have a few brave little crayfish letting go of mom, so im scooping them up into a tank of their own! will try and get pics but they so small!!!!