Yea, but I suspect a lot of fish will eat coral if there is nothing else going. I'm growing to think that a lot of people focus on limiting nutrient input, including food, rather than focus on output. So long as you look after the nutrient export side of things, you should be able to feed it something that makes coral less appealing. That said, I'm no expert on marine fishes - maybe coral tastes like strawberries to them?