SPS is losing tissue?

[Dondante]

Any ideas what is going on? The only thing that changes was new lights. I added a pair of Kessil 360x 2 weeks ago. Just came off of acclimation mode that I ran for a week. It was high on the rocks towards the middle. Everything else is the same. I didn't notice this until last week after the lights had been installed for 4 or 5 days.

Could this be light?

 

[Dondante]

The other side

 

[Ling_Thing]

We need your Parameters

 

[Dondante]

Alk 9.2 (was 7.9 when it started)
Salinity 1.025
Nitrates 15ish
Phosphates ?
Calcium 420
Temp 75


I just dipped in Seachem reef dip for 15 and moved to the frag rack. As seen in the pic .

 

[Dondante]

This is where it was located when new lights were added.