Sorry, I was referring to just after laying the eggs for the Momma. I was thinking you had eggs due to drop not hatch. My bad.
You can really start them off on anything available of appropriate size. They will start easier on live so make sure you have smaller live prey availability lined up. I used big fuzzy ASF because they were handy as a friend breeds them. After 3 or so meals they were eating f/t pretty well. Personally I mix up the prey items keeping the general size the same. Rat, mouse or ASF. I want to make sure that they will eat anything so it makes an easier transition for the buyer.