Yes, I recommend feeding a tang a wide variety of food. I would definitely get some meat in her diet. Some mysis shrimp or some krill will do your tang a lot of good. Keep a varied diet with 3 or 4 foods that you can rotate so your tang does not get head and lateral line erosion.
I feed my tang frozen kelp, nori (which is similiar to seaweed), spirulina, krill, Formula A, enriched brine shrimp, and enriched blood worms.