My AOG, PPE, and one of the new palys that I got are starting to "melt". The oral disc is becoming splotchy white. It started with my AOG, which haven't opened for 2 weeks. They are just starting to open, but there is brown stuff coming out of them and they look white in some areas. The PPE just started to turn splotchy 2 days ago, and it turned them ugly very fast. They still open, but they are splotchy white. I got a new frag of Mohawk palys over the weekend and from the second day on only 1 would open. They are all open now, but two of the small polyps look like 3 or 4 of the tentacles are melting off. There are at least 25 other zoanthid colonies in the tank and they all seem fine.