How do I feed brine fish eggs?

My brine fish eggs are growing, and they should be more bigger by tomorrow. But I don't know how I should feed them. This one book says to take an eyedropper to take up shrimp and put them in a dish of fresh brine shrimp eggs, with some yeast. But I have this box that is a shrimpery and it says for me to feed my baby fish from the fresh water in the collection boottle. I don't understand that.