Hello,
Sorry about the acro, but as others have said sometimes they just go south for no other reason. If you had a bunch of them (bleach out) I’d be a lot more concerned. Yet, I would watch the tank very closely for any other changes. I had one sps go bad, then another and another. I was able to stop the bleeding, but still lost some.
I would not change your lights for anything right now. Going to radions or kessils will not do you any good. Remember these are living critters, so they have adapted to your lights. (As simple critters as they are), changing lights could kill all of them. Making changes or lots of changes suddenly will be bad.
You could always turn your skimmer off for a few days to let things build back up. Another idea is that you could feed a little more also. (If you do shut the skimmer off, place an air stone or make sure you have surface agitation for oxygenation). Another thing to consider, which is how I lost mine is flow. Now we need lots of flow, just make sure it’s not directly on them. I lost a few sps because my wavemakers were tooo strong.
I hope you get another one, and it fairs better for you. If so try and find one that is tank grown, and not ocean grown. The ones raised in the ocean are far more sensitive to small changes.
Sincerely
Sarah
