Those just look lie feather dusters to me. ??? Its hard to really tell. Apastia has a pink color to them and they look like little anenomies. Ive heard Joes Juice works but I never had luck with it. You have to cut your flow for a few minutes and also try not to get it on any other coral. I just get too nervous. Try a pepermint if you think they are apastia. They are very well know for eating them.