Okay, someone nicer please say the same thing.
Excuse me kind sir or madame, but we the reef community could very much benefit from some more information. As it is most beneficial for capturing detailed images of sick livestock, please lower the concentration of blue light and raise your white or daylight spectrum so we can get a better look.
Also, if you could provide your parameters it may highlight the potential issue immediately! I do very much hope that your Ammonia, Nitrites and Nitrates are in check - or else I am afraid you may be moving too quickly! Alk, Mag, Cal, and SG would be the most likely offenders, so please provide them as soon as possible. Hopefully you checked all of this before adding any invertebrates to your (hopefully) well established tank.
From what you've provided, while a bit blurry, your anemone doesn't look too bad - maybe a closer shot will help us see what you see? I suggest a standard water change as soon as possible. Also - did you happen to notice anything wrong when he was in quarentine? I do hope you quarentined it - after all that is best practice in the reefing hobby! If you haven't, I will happily DM you a step-by-step guide to setting up a QT tank and my personal preferred dipping method!
Hopefully this helps - but in case it doesn't, maybe provide us full details on your entire system and setup along with any pictures you choose to share! I for one would love to gaze upon your flawless face and compliment your choice of shirt/blouse. I hope nothing I said could in any way be construed as offensive or insenstive in your trying time and, should you or any other random passer-by on this forum deem it so I will gladly cast myself from the nearest cliff and bequeath unto you all of my worldy possessions to make this right.
Yours truly,
Timnem70
Fixed.
) You don't say whether or not you have a ATO, but regardless, in a tank that small it is extremely difficult to keep it as stable as an anemone requires.
