I can give mine pretty much anything Andrew. NLs, HBH, mysis, kens tropical food flake.... I just make sure nothing slimey gets thrown in ( in other words no black worms or BS) and the protein level stays pretty low. I don't like the color on my tropheus when I only feed NLS. Call me crazy ... I know a lot of people swear by it. But I fine a seafood lover type food brings out their colors more and are healthier. When they are babies you can feed them heavier protein and they typically do better that way.