Red monti started bleaching randomly

[VirginiaReefer]

My red monti randomly started bleaching in a few spots. Nothing's changed as far as position, lighting, flow. I don't have water parameters handy. Just curious on first thoughts for potential causes to look into. It's been a good grower for over a year without an issue. TIA

 

[VDC]

hows the flow in that area, does not look like bleaching but peeling. you would know better though. Whats the par there?

 

[Mr. Mojo Rising]

Its very hard to tell without more info. Need a picture in white lights and parameters. It could be getting stung, it could be toxins from all the soft corals around it, monti generally needs more light and flow than zoa's do, parameters might have changed.... it could be anything.