Ok, I know a lot of people are going to be annoyed at what you did, but I wanted to share my sympathy. I had a piece of live rock that came with encrusting fire coral as a hitchiker, started as a small area and spread and spread. It got to be I couldn't even clean one section of my glass for fear of brushing my hand against it (which I did several times). So you know what I did? When I moved from the 46 bow to the 75, I put that rock fire coral side down in the sand. No more fire coral.
People can piss and moan, but aiptasia is a reef creature. It's an anemone that you get with your live rock. You kill that, don't you? Because it kills your other corals. Well fire coral pretty much is the same kind of pest, only it also hurts like hell when you touch it. Sorry, but if you can kill your aiptasia and valonia to save your acropora, then we can kill our fire coral to save our acropora (and our hands).
MC