Thanks for the help everyone! I was looking at a blueish green starfish when I saw the spaghetti worm last night, it scared the p*** out of me.
#theMatrix-I had an onemone fulgida worm 3.5 inches long when it was all closed up, guessing it was 7-9 inches long when fully stretched a few months ago. Was able to pull him out of the rock and cut him in half with a box cutter.