Damn,
@gottagrowsometime, I click on every question and as I go to type my answer I see your response and it's exactly what I was gonna say - just an hour earlier! 😂
Only other thing I wanted to ask is whether Kenny's figures given in the grow journal are correct? Specifically, the grow light being 2000W and the distance from the plant being 18 inches? If so, I would think that's very close to the canopy for such a strong light source. Could potentially be light burn. I use a 450W LED (true wattage - none of the "replaces a 1200W HID" sales malarkey!) and anything closer than about 26 inches on full power does noticeable damage to the leaves within 24 hours during veg.
Just a thought. Still think you should do a soft flush though as GGST suggested already.