A bunch of my coral look a bit like they are bleaching to me. Specifically the Euphyllia and one of the Zoas.
Only a few things have changed:
1. Nitrates are down from around 10 to 1-2ppm.
2. Lighting changed to include much stronger intensity green.
3. Flow pattern changed and some rock moved around.
Water params:
10 Alk
1.5ppm NO3
0.07 PO4
450 Calcium (need to retest this...)
Not sure what's up. Going to dial back the lighting, go back to the normal schedule.
Think I need to add some more bioload to keep nitrates up. Haven't checked pH since my test kit ran out, but maybe keeping the house all shut in because of the wildfire smoke has caused some issues.