Live food is best for fry; baby brine shrimp is one of the most highly recommended, although there are worm cultures that people use; microworms, grindal or vinegar worms are all good.
+1 I also use the left overs that accumulate at the bottom of my pellet/flake/freeze dried what ever food. I try to vary what ever I use.
Seems like they have more of a chance of getting all their vitamins and minerals that way. Congrats btw