Armageddons are the poster child for growing very fast and melting away. It happened to me a few times and I never really frag'd mine. Mine grew so quickly that I would just put a few little pieces of rubble around the colony and within a week all the rubble would have a few polyps, so I never had to cut (they weren't the matting type of paly/zoa). I never read or hear about Armageddons anymore. I would love to get some more and try again. It's one of those things were I want them because I refuse to admit that I can't get them to survive long-term. I never saw any changes in alk, mag, cal, etc, etc around the time they would melt away, and nothing else ever died. My acro's didn't even fade or darken or show less polyp extension throughout the year I tried to keep them. This has always frustrated me and makes me think that it was just some freak occurrence, and I've always wanted to get some again. If anyone has some, I would love to buy a frag from you.