once you have them hatched then you could transfer them from the hatchery into a small tank (10g) and continue to grow them that way.
Heres an article that should tell you everything (plus much more) that you would need to know
depends what you want to do it for - A lot of people do grow them on so they can be fed to larger Cichlids.
If thats what you want them for then it is worth it for sure.
You must have a reason for wanting to know how to do it - What is it ??
It's tough..you have to grow algae in your tank until it is green and opaque. If you really want the details....go here and then click on how to grow them:
Though not easy, newly hatched baby brine shrimp can be reared to adults in 3 weeks.
If you are looking to raise brine shrimp as a food source for your fish it is easier and less expensive to buy live or frozen adult brine shrimp from your local pet shop or tropical fish store, you cannot raise enough shrimp in a small aquarium to make the effort worthwhile, but if you want to do it as an experiment or learning experience, start with a tank of 10 gallons or larger and limit the amount of shrimp nauplii you use as a starter.