The purple upper looks to be some natural fall coloring and the lower seems to be the fade. I would keep feeding them at 6.5 and 1000 PPMS 
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Thank you so so much for the info. Today is expand my knowledge base day. I’m going to read up on all the things you sent and what others have said. I did the second full strength feeding last night in 5 days and the yellowing has slowed dramatically. I was out of town yesterday and when I got home last night and checked on her, the change was amazing!
Buds put on a ton of weight, more sugar, and much less overnight yellowing. To be honest, I think I was unknowingly starving her because I was really afraid of nute burn. Of course no one on here can diagnose with pinpoint accuracy because everyone’s growing conditions are different. But the wealth of knowledge everyone freely provides is invaluable.
Thanks to each and everyone who’s ever lent me their ear. 
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