Here's the recipe:

2 cups tank water
1/2 cup RO/DI
1 tsp brine shrimp eggs

• 2 days gentle bubbling, 24 hours a day. Keep it under a 100w light bulb the entire period.
• Remove and allow to settle.
• Siphon everything but the surface. Siphon the orangish stuff especially, and ignore the clearish water near the top.

Half of this is portioned to my 29g, the other half is given to my 55g. My 29g is heavily populated, and my 55g is about the same population in a larger amount of space and water.

I ordered two hatching stations from BrineShrimpDirect.com along with a fine net for collecting the newly hatched brine.