Same response as to your cichlid thread:
love new life spectrum, and I think that it can be fed alone to most fish.
But since the texture of new life is often very hard and dense, fish do not like to take it.
I got around this and supplemented my fishes diet by making it into a gel food.
I grind the new life with nori, and spirulina.
I add that powder to salmon, scallops, silversides, shrimp, krill, mysis, spirulina brine, "reef plankton", bloodworms, garlic, pumpkin, spinach, tomato, sweet potato, vitamins and more.
Everyone Ive ever given this to has eaten it.