I have both browns and blues and like the blues better. My blue was with me for almost 2 years until I had a crash. He never picked at corals, most likely cause I feed a little heavy to keep everything fat and happy. I have found that they can be tricky fish to keep if you don't know how to keep tangs. Just like all other tangs, they can be aggressive to other tangs and tangs are always the last fish I add. When I do add them I also change up the rocks so everything is on the same playing field.