I believe raising Centropyge larvae is still quite a challenge. It is my understanding they initially need something smaller than rotifers, people have been experimenting with wild caught larvae.
I know there is a commercial company that has raised a few varieties of centropyge but I have not heard what they use.
Have you seen any spawning activity yet? I just love the cherub angel, they are so adorable, I am sure a pair are too cute for words. I currently have a pair of flame angels.