I’m working away and my wife just sent me these pics. Plants are around 1 week from harvesting and I’m wonder if this new leaf colour is normal.
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Are you still feeding them? Figured there’d be more yellow a week from harvest
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Hope they finish off for you ok.
Ashame to get them so close to have the grow go bad.
Get home soon. 
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Might be nute burn, couple of the pants been real sensitive from the get go, maybe not good enough run off and it’s building up
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What is your runoff ppm? Should be close to 250-400 by now
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I’m away right now and can’t check
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It’s from cold temps in my basement I just figured out. So all good 
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looks like some fert burn and pH issues (probably due to excess salts)
the cold temps r not helping, but the leaf symptoms r not from being too cool.!!
after u get home and when they need watered again do a serious flush,
use a product like Botanicare Clearex, run a few gallons of the mix thru your pots,
then a gallon of pH’d water, then 1/2 strength bloom ferts in the normal amount.
1/2 strength = 1/2 of what they were getting, not necessarily 1/2 on the directions.
then water/feed at 1/4 strength until harvest.!
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