SPS bleaching from base up

[Molly1414]

I have a new frag that has been in my tank for two weeks.
The last two days I have noticed the top turning brown and loss of all color from the base up. All other coral and sps doing well. No fish in this frag tank.
Could this be from putting it directly under my kessil 360we to fast?
The lfs had it under MH fairly close.
Water:
MG - 1360
ALK. - 8.4
CAL - 450
PH - 8.2
PO4- 0.05
Temp- 78
SAL - 1.025
Running GFO in reactor
Does anyone have any thoughts as to what the problem may be?
Thanks

 

[undertai]

Water looks good. Could be water flow or the lights as LEDs are more intense than mh. The light from LEDs are more focused than the wide spread of MH lights. Move it lower or to the side of the kessil.

 

[Molly1414]

So in a matter of three days the entire frag has died. Took it out and it reeked of dead tissue. There was a small piece that still had some tissue and color so I fragged that off.
What would cause a large frag to die in this short of time? Not just loose color but melt away.

 

[Scorpius]

I noticed my corals don't like anything above 35% on my Kessil A360w. These Kessil lights are intense. They're like laser beams.