does anybody know what’s going on here? Sorry this is the best video/lighting I could take. This is an indoor grow I took the plants outside to get better lighting to take the picture.. When I noticed what was going on I checked my ph and ppm runoff. At the time my ph was 5.8 and my ppm was around 2400 I flushed my ppm down to 1000.
I’m in soil pro mix
33 days in flower
my room temp is around 79 degrees
my room humidity is around 57
i have 1000 w hps lights
no pest
ph 5.8
I use Athena nutrient line and my feed ppm is around 1500..
My runoff ppm was around 2400 I flushed down to 1000ppm
I have different variety of strains Mac 1, grape mac and several others and they
all look like this..
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There about 3 1/2 feet
How far away is the 1000w HPS grow light? Looks like a severe case of light burn imo. More info: https://www.mrgrowit.com/post/light-burn-light-stress-in-cannabis-plants
I would definitely say nutrient burn with the 2400ppm. One feeding at 2400ppm, you may be able to flush it and recover but at this late in flower it’s really 70/30 sadly.... if the 2400ppm was at prior feedings then... well you know.... I hope you can make something out of your har work brother. Good luck
Do you have any pictures from when you first noticed the problem? It might be easier to see what happened.
But here's my guess: I'm think you had nutrient burn and/or possibly a nutrient lock out both of which would be due to the 2400ppm. You mentioned you flushed down to 1000ppm, that's probably ok but not sure how much you actually flushed through. A pot that size I would flush her with at least 12-16 liters of PH'd water to make sure I got all the salts out in case it is a lockout issue. I hope it's not too late, the damaged leaves will not recover but new growth after the flush should be good .... if I am correct about the issue.
Good luck