Amazing growth in one week. 12 inches are more growth in this last week!!
Bruce Banner is growing like a monster at 24 inches LST’ed. showing no signs of stress or problems.
Amnesia Haze is also growing great! Also showing no signs of stress or problems now!
Leaf tips are starting to become yellow & brittle & they flake off on touch after a couple of days. Started a week ago. Turned the lights down to 30%. Introduced cal/mag + silica. Hit them twice before the lights turned off with a foilar feed of cal/mag.
What’s wrong? TIA
…And cotinuing my prev post. As you’re growing in DWC - the roots may show some symptoms too.
Make a new res patch give about 200-250ppm of CalMag for the base then get your EC somewhere between 0.7-1.2 / 350-600ppm.
Foliar symptoms appear as K (Potassium) deficiency.
You’re having way too high EC and therefore the excess salts creates nutrient lockouts. Plants may express the symptoms as a deficiency or excess symptoms on the foliage.
It is a nutrient overload problem, not a lighting issue.
You are feeding them too many things.
They certainly don't need bud candy or terpinator at this stage - they are baby plants, baby plants need baby feeding!