I cycle what I feed my guys: 1st day, brine shrimp just like what you have, 2nd day flakes, 3rd day frozen cubes of bloodworms (just like your brine shrimp), then pellets the 4th day, then start the cycle over again. On Sundays I don't feed them anything.
From what I've heard, the same food EVERY day is like eating a Big Mac/Whopper everyday. Sure, you can survive, but just how healthy would you be from the lack of variety.