Is my coral bleaching?

[Jmm07e]

Hi I turned the lights down to 75% and they'll slowly go up to 100% over 30 days.

But, I can't tell if my coral is bleaching or if it's the natural color.

All the other corals looks great.

You can't really tell by the photo, but it does have a whiteish hue.

Bottom right coral in photo.

 

[Saltyreef]

Ricordea fl mushroom.
Looks good to me. The only way shrooms bleach in my experience is when the light is too low.