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I'm doing flood and drain in buckets with rockwool. I started using Jack's 321 because I heard good things about it. Everything was going great until about 5 weeks into flower.
My PPM after mixing a fresh rez is about 1350. After a feeding the rez would shoot up to around 1700. I'm wondering if that could be caused by a salt buildup?
Anyway, I guess I did not think it was a huge problem, but over the next week or so the plants were showing signs of nute burn.
What would cause the ppm to...
Flood and Drain - Jack's 321 - having problems.
My PPM after mixing a fresh rez is about 1350. After a feeding the rez would shoot up to around 1700. I'm wondering if that could be caused by a salt buildup?
Anyway, I guess I did not think it was a huge problem, but over the next week or so the plants were showing signs of nute burn.
What would cause the ppm to...
Flood and Drain - Jack's 321 - having problems.
from Hydroponics / Aeroponics https://www.rollitup.org/t/flood-and-drain-jacks-321-having-problems.1018018/