I was given both info Baby Brine shrimp and this:
"Raising them is difficult, rotifers are a good first food. A small tank with very light circulation from an airline is best, I raised them for awhile in a 1 gallon bucket with an airline bubbling 1-2 bubbles per second, water tinted green with plenty of L rotifers. They can eat a surprising amount of rotifers for their small size. "