Brine Shrimp need to be fed about 12 hours after hatching. This is when they molt into their second larval stage and start feeding. At this point they'll start starving if they aren't fed. I use a 10 gallon tank with some acrylic, pvc
pipe, and airline tubing to create an oval tank and make a raceway water circulation pattern. I add Roti-Rich and cultured Phytoplankton daily to keep the water a light green color. For me it's easier to keep a live tank of adult brine shrimp since they give birth to live babies. I don't have to deal with eggs or hatching. I just take some of the water out and filter the size of shrimp that I want and put the rest back.