I don't know bud. N tox or nute burn I think causes leaf clawing downwards. I've had that. I've had leaf edges curl up like that a little and it was my light being to close. Heat or too little water can do it too. Most of the end of life dying leaves pics I've seen the leaves looked crappy but I didn't notice them being curled. But maybe they do.
Just looking at the pics and my very limited knowledge I'd guess light or heat stress.
It’s only on one plant the other one shows no signs of anything like that. My temps are ranging from 64-79. I have had this heater on but I’ve been using it for a month now. It’s been subtle but slowly getting worse.
My lights are approx 27 inches from the top and I can’t raise them any higher.
I water every 28-36 hours or when my bags feel light.
Feed/ feed/ ph water cal mag
This plant has been dark and shiny since day 1 I swear. Early on like day 10 it was clawing but snapped out of it and no clawing since. But the dark shiny leaves have always been there.
@FullAuto245 Just took a pic for you. Heres my leaves. Curling upward as well. Lights 27 inches away. 75 degrees 47 percent humdiity. And im on day 9 I believe of the flush. And day 12 since it stsrted
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