Thanks for that info ,it is attached to a very small piece of rock,i went about this all the wrong way,when i first got this coral i put it in the tank without dipping it yesterday ,then at night i noticed something moving on a rock near where i placed the coral i found out on the web that it is a bristle worm,I don't know if i already had them or if i brought it in with this coral so i bought the dip the following day and dipped it ,also removed the rock that night that i saw the worm on and put it in a bucket of plain water and left it there for about an hour, and i did see about 4 dead bristle worms in the water that came out of the rock,from what i have read now on the web some are okay and some are bad for the tank, not much i can do about it now i guess if i did bring it in on this coral.