Strain Fat Bastard. Hydro grow Ph 5.8-6.2
never swings bad. Vpd is in good range no serious swings. I got this odd problem week 4 of flower and just hit this necrosis with pink purple. Starts on upper foliage to mid. I was thinking at first nitro and phosphorus deficiency so basically I have a Nute lockout. So I flushed it. The odd thing is lower leaves aren’t affected so I’m guessing maybe sulfur??? If I did have a nutrient lockout almost every nutrient starts from the bottom and works its way up so I’m confused. Never had this problem in all my years. I re added my nutes at 75% strength any responses much appreciated.
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Ignore the burnt leaves on left on the first pic that’s a separate plant. Got a new light and realized it’s power lol
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What are you using for base nutrients? As long as you’re using complete base program it’s not likely to have an actual sulfur deficiency. Ph going to 6.2 could be a problem, I guess it really depends on what else could be going on.
What does 75% strength look like in total ppm or ec?