So far the last frag is doing well. my fingers are crossed daily and I am in the process of fighting with myself on moving it into the downstairs fuge/mix/left over tank. My only concern is although it is the same system I am afraid that any little change may trigger a regression thus the fight to leave it where it is.
My only thoughts on the sudden decline are a few.
1) I know in the wild we do not know how long they survive although because of the longevity of other corals we speculate a long life for
these as well.
2) As much as we try to match Mother Nature we can not. It just wont happen. I have had it 8 years and have seen its ups and downs during the last 3 . I went with the 240 to give it as much room as possible but it has never gotten back to it's glory of 3 years ago. Could this be because of tank changes form the 120 to the 240 I am sure it could. Could it also be that I had started taking "better" care of the tank IE. weekly water changes and watching parameters closer since the 240 went up. Could it be that I did an intensive interceptor treatment right before it seems to have bit the bullet? possibly. another factor is the lighting downstairs was stuck on for 4 days before I realized it and melted over 50 rics which I believe caused the brown jelly disease to attack my red candy canes and gonipora down there. which may in turn have sent a pathogen or signal to the elegance?
I am not sure if I will ever get another elegance. I consider myself very lucky to have kept this one for as long as I have. I believe part of it had to do with the fact that it was purchased back in the day when they were easily collected and came from shallower waters. I also believe a lot of its survival was because back then we/I did not know what I know now. For all the good that we think we are doing to keep those in our care happy and healthy. Pristine conditions are not for all animals. back when I got the elegance I had a 55 gallon closed tank ,crushed coral bottom, PC lighting, tap water, no additives, no fish goo, algae up the yin yang and a basic yellow colored tank.
a year later I went with the 75 same system then into the 120 which was also run closed , added 2x400MH learnt about feeding mixed fresh sea foods and such. Slowly the 120 added a small sump in the stand with a bullet skimmer then came the ro/di system, fuge, then 3 years ago the plumbing to the basement, larger skimmer, calcium reactor and down grade to the 2x250 maristar. Could all of this "upgrading" to maintain a better system for the inhabitants hurt the elegance? I believe it is possible due to the fact that it did wonders in a nasty tank for 4 years.
I have been watching something for 7 weeks which I may try which leads to my new post