something went wrong with potassium and the edges start burning I'm trying to recover the missing potassium . But I still wonder about it, Any thoughts ??
Its hard to determine from the photos whether its potential light stress or Nitrogen deficiency. I'd recommend raising your SF1000 to around 12 - 13 inches above the tallest flowers in your tent and then waiting a few days to see if that brings some colour back to your leaves. I don't run the SF1000 closer than 12 inches so 9 inches may be a little bit close for your ladies. If the fading in the leaves continues I'd recommend decreasing your FloraBloom by 1 - 2 ml/gal and increasing your FloraGro by 1 - 2 ml/gal to give your girls a boost in Nitrogen and see if that does the trick. Hope it helps you, good luck!
in my opinion the light green of your leaves looks like your plants need more nitrogen ,but im no expert.
either way they look awsome and they are gnna be huge buds,hopefully you figure out the issue