lugol's, fourth item down. This is a RC preferred site (sponsor).
http://www.customaquatic.com/customa...2Dsr&offset=30
Kent Marine (maker of lugol's) doesn't seem to have many suggestions regarding other corals being dipped in this solution. You may want to consider removing the items and gluing to another rock first. Or removing the zoo's. I frag them by the hundreds.
Good luck.