OldFishKeeper
Fish Fanatic
Check out the info on paramecium. Personally, I would choose something else to feed fish fry.Paramecium is a good first food for many fish fry, including Apistos, as it is small enough for them to consume...
What else could be there... Something that paramecium feeds on Sure that paramecium alone is not enough but it's something and they feed on something.