LPS Pagoda Necrosis?

[adoptaspork]

Hello all,
Thank you for your help.
Here is what the coral usually looks like:



This picture was taken just a day or two ago.

Here is what the coral looks like this morning:



How should I deal with this? Water params normal. Color hasn't changed; those pics were just taken in different light.
Here is my lighting schedule; I switched to radions a few months ago from Kessil lights and haven't gotten the schedule smoothed over yet so perhaps this is contributing?



Should i dip in ReVive or CoralRx?
New tank inhabitants include a domino clown pair added two days ago which I haven't seen look sideways at the coral and also a maxima clam, mixed zoa rock, and yellow gorgonian from reef-a-palooza this past weekend. I do not have a dosing schedule and have been relying on regular water changes thus far, but I acknowledge that with the clam I will need to start.

Tank is a RSR 250 set up in July of last year. It was an upgrade; everything from my old cube went into this tank and has been thriving. All help is appreciated! Thank you!

 

[Optionman]

i have a large pagoda cup. mine likes high light and strong flow across the top. i keep mine near the top of a 150 gal.

 

[adoptaspork]

Beautiful coral!
Do you think I should move it higher?

 

[AlSimmons]

Do you have a lot of salt creep around the tank? Sometimes when this falls on a coral it will burn it like that. (if that's what happened) As long as your parameters are within reason and the lighting is sufficient though I would just give it a good scrub with a brush. There will probably be some sliming, but it should grow back given time. GL.

 

[Optionman]

i think a strong flow across the top helps this coral keep its surface clean of debris. if you have a good space higher up and with better flow i think this coral would benefit. good luck.

 

[adoptaspork]

Thank you guys!
No salt creep around the tank. I keep everything cleaned up and there are no cords inside the tank for salt to accumulate on.
Water params all fine and the tank is a RSR under 2 radion xr15w lights.
The pagoda cup is opening fully and the other polyps cover the mystery spot... I cleaned it out a little bit and put it in some more flow as suggested. Should I dip or leave it be?

 

[AlSimmons]

I'd leave it be for at least 3 weeks before you do anything drastic. If you don't see any improvements by then you might want to consider dipping the coral. (among other things) GL.

 

[adoptaspork]

Sounds like a plan. Thanks!