Well, I don't know what you've tried, but if you check my web site on brine shrimp, you may be able to scale it to your own needs.
Number 1 thing to know is that these brine are low in nutrition so they need to be gut loaded for 1 1/2 hrs before feeding them to your fish.
Basically a five gallon pail with a heater and air pump and rigid air line, will keep up to about 10,000 adult brine shrimp.
Feed them just enough to colour the water (so pollution levels are kept as low as possible), using spirulina preferably, or any flake food that can be crushed up fine, placed in a dense piece of cloth to make a "ball".
Pictures and text can be found at:
RAISING BRINE SHRIMP