So I have some GSP and mushrooms that I want out of my tank!! They are on some big rocks that I can't take out because they are part of my structure and there are other corals close to them. Does anyone have any ideas on how I can kill them off? I've tried aptasia X which works to some degree but they keep coming back. Any ideas would be appreciated!

GSP is best dealt with removing from your tank completely. I learned that lesson.

