Somethings in my zooanthids

Your assumption was right on the money

 

Just a quick update on the macro, I spent a month or two fighting its spread manually with a pair of tweezers. About a week ago I figured it was a losing battle and started researching other solutions. I read in a few places that zooanthids are hardy enough to survive a dip in a diluted hydrogen peroxide solution. I dipped them about a week ago for around 2 minutes in a 50/50 solution of H2O2 and tank water. As of yesterday all the polyp heads are finally open and there is no more visible macro alive. At this point I'm hopeful but only time will tell.