I have a yellow coris wrasse, but he pays the star fish no mind. I do agree that they can destroy zoas - it's fact not myth as I have seen them destroy mine (lost 2 colonies to them last year). Had a harly for that same reason before I restarted the system. Now the few I have are not of the darker variety, however I too will be getting another harly and supplicating it's diet once these few are gone as well.