I had a red variety I bought when I was down in Baltimore several years ago when I was testifying for a client in court. It was really nice, until a fungus showed up months later and started destroying it. I switched it into the other tank that I had running at the time and wasn't enough to save it, even with a coralrx dip. I look under my starlight blue acro I have growing in my tank and...color me surprised it is making a comeback. Interesting stuff with how hardy it can be. Thankfully, not as invasive as it could be...but then again my tank isn't as friendly towards some soft/polyps as it is others.