First of all, if you want to raise clowns, you need to feed them rotifers for a while before they can eat newborn brine shrimp (nauplii) ;
Raising live brine shrimp to perpetuate their life cycle is labour intensive and fraught with many failures even after acquiring the needed skills.
It takes me about 4 weeks to hatch nauplii from cysts and grow them to adult and have them produce live born nauplii. Dropout along the way is sometimes significant.
If you really want to try anyway, go to my page on raising brine shrimp and after my article there are several excellent links on brine shrimp, especially the first link "Tank Grown ".
RAISING BRINE SHRIMP