I have not seen any of the damsels nipping at the tang, all the rest of the fish look fine, just the tang. One of my damsels just started to miss with one of my corals. I had a coral in one spot and I moved it and I brought it back to were I first it started and now the damsels keeps knocking off the rock. Its kind a funny watching him hit the coral with his nose but I had to move it because he didn't like it there now. My tang started to have this problem before the damsels started to miss with the coral.
