Mine has also darkened up, not a surprise though as I'm only running NO's. The polyps are extending all the time and the piece does appear to be healthy as it has grown a little. The sudden color loss came on around the 2nd week of the new year. It only took two day's for the frag to turn completly brown, I almost took it out as I thought it was crashing-I'm glad I decided to keep it in the tank as it's still alive and growing just not the teal color anymore
Sorry for not responding earlier Jason and others, totally forgot about this thread
