I have a blueface, Mascolusus (sp?), and a goldflake in my 1100 gallon reef and they are not a problem. They may nip here and there, but the tangs seem to bother the corals more.
Not true. I have proven that statement wrong several times and so has many others here on this board as well as others not on this board . Go there, you'll see.
The stuff there isn't that great anyway, he is the one supplying all of the area Petco's and we all should know how their livestock...