What is wrong with my leaves?

Geodawg22

Active Member
Hi All,

The issue is blackening of the serrated edges then followed by crispiness. Always starts off as orange dots near the tips or serrated edges curling up.

I'm seeing the same issue in all my plant, it's happening to mostly older fan leaves.



Aeroponics (similar to stink bud system), drain to waste
Day 72, Night 67
humidity(see pic)
Ph 5.8
700 ppm (3ml/gal cal mag, 2g/gal mega crop, 1ml/gal hydroguard, .4ml drip clean
350ppfd Quantum boards 24" away
 
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