Grow dots i dont think you need to worry ppm. Thats a large ph range though. Coco, if i recall correct, try to stay close to 5.8 as possible. Ph going down that low makes me think anaerobic, no oxygen. Over watering can be cause of that leaf damage. Might not be current but from 3 weeks ago. I would let it ride for now, last 2 weeks they dont drink as much, a little dry at harvest wont hurt.
This reply was modified 3 weeks, 3 days ago by Thickems.
ride it, out in my experience week 6 on an 8 to 9 week strain the plants start to look like that sometimes. that is why I think some of the best pictures come from week 6 not week 8. if i was you at this point they look really good and I wouldn’t change anything especially if you are planning on a flush.
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