I have a snail shell with a bunch of mushroom corals on it being used as a frag which I got for a freebie at my lfs as I wanted the coral BADLY!! But, the shell after being coral dipped already still has this type of bristleworm Inside it still... Could I get help identifying it and if it's a big deal to put it in my tank or should I try to remove the shrooms and re frag them on rocks?