My green star polyps have been growing on my back wall since i setup my tank in June 07. I love them being there and they have always looked very healthy until a couple of weeks ago. They are starting to peel away from the glass and they are getting holes in the mat. I don't know what would have changed lately. I have not added any livestock or really changed anything. It has been a while since my last water change and my bulbs are probably in need of replacement but what would cause this and what can I do to prevent total loss?
Michael
Michael