I don't really recommend live brine shrimp as a staple in a diet. I only recommend it as a treat. Brine Shrimp are 99 percent water and basically have no nutritional value. It works great as a treat but not as a staple. They are a brackish fish so be sure to keep them in brackish for success. I would feed them any kind of frozen foods like bloodworms, brine, mysis shrimp, among others. Hope this helps and good luck.