Dip is a must..However do look out for flatworms eggs.Although our eyes cant see pysically..Best is to rub around the torch skeleton.In case there is eggs.Aslo flat worms they will so call dig into the flesh or hide into the gap between the flesh and the skeleton(That part i dun know how to called it)sorry for tat.
Do look out for flatworms for the other corals.Best is aslo to do a dip for other corals.