Hey there! I have my first question... I have been involved with saltwater for years, and have recently started a nano reef. The tank has been established for over a year. I bought two Zoa frags a few days ago. One is doing great, and the other one looks like it's melting and going from bad to worse daily. The frag that is bad had a brittle seastar on the plug when I purchased it. I did not add the seastar. On the bad frag I have two of 7 polyps left. When do you say, it's the point of no return with a Zoa polyps frag? Also, will this (I believe bacteria) travel to the healthy Zoa polyps frag?