Well I heard from the owner of my favorite LFS
said that the staple of a marine fish's diet should be frozen/fresh food, for the simple reason that a fish does not see a dried piece of seaweed floating in the wild. Others say that dry food although not natural, is supplemented with veggies and nutrients that maintain health, and bring out the vibrant colors of marine fish.
What is your opinion and why? What brand do you use? Do you make your own? What vitamin supplements do you use?