What kinda babies are they? I would go with the bbs. I have a tank with some con fry in it, and they have been feed bbs for the past 3 or 4 days. I have noticed a huge growth spurt in them.
Ive never heard of it! Powdery flake, Hikari first bites, infusoria{for some fish}, brine shrimp, daphnia and other small live foods may be used as well. Good luck!