I personally have never fed brine shrimp since I had not seen it was a recommended food source. I use a variety of other foods beef heart, high quality, high protein pellets and Al's Freeze Dried Black worms. You can order them here in the sponsor section. The are clean, high in protein and a go to food for people whose fish have stopped eating. The discus LOVE them. I also must mention the Discus Chow he carries is a daily staple. Very clean, high in protein, a great value and every pellet gets eaten. Also Al is a rock star about shipping and the price of that is included in the list price. (I am not being paid as a spokesperson I assure you- these are just really great foods IMO.)
Read up on this link about frozen brine shrimp. Hope this helps.
http://forum.simplydiscus.com/showth...t=brine+shrimp