Coral bleaching.....Help

BSC 1, can you please provide pictures of the bleaching corals? All of the suggestions so far are great but I think to truly diagnose the issue it is always best to see the problem at hand. Your numbers all appear great. Nutrient problems like build up of Po4 and or No3 would cause tissue recession in the form of STN or RTN but not bleaching in my experience. As others have said, you would see a browning out of the coral instead as well as nuisance algae growth. Same with lighting deficiencies, the corals wold brown but thrive under less than ideal lighting although I have no experience with led's. Too much light and for too long a duration daily would cause bleaching of the coral tissue as well as too high a level of Mg but your Mg appears fine as well. Anyway, pics please and thanks. Good luck!

Thanks for the reply. I am not good at taking tank pics and then posting them but I will give it a try tomorrow and see if I can get some posted that might be useful.
 
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