Fighting brown clove polyps, need your input.

[Steve]

As the title states I went from having a few on a frag of zoas, to having my back glass and a few rocks covered in them. No damage to corals but dang, those things is ugly. I am weighing 2 different options. I have fenbendazole which I have heard kills them, but I have also heard that they are prone to coming back and there are a few corals that I have that it will kill as well. Also considering removing all the fish and corals and going something like hypo. I am sure either one is going to cause die off with pods and worms and such. Any experience or wisdom appreciated.