Well, Angelfish can only eat freshly hatched brine shrimp, because baby brine shrimps are small enough (0.08 to 0.12 millimeter) for the angelfish fry to feed on. Freeze-dried brine shrimp and freeze-dried bloodworms are popular options that angelfish can enjoy. These foods don't pack as many nutrients as their live versions do, but they also don't contain parasites or bacteria.