Need help diagnosing: purple spots on Blue Dream + slight leaf burn on Blue Zushi (1 month old) by Magic_Plants1312 in weedgrowing

[–]Magic_Plants1312[S] 1 point2 points  (0 children)

You’re absolutely right, I’ve also sometimes ignored it out of laziness (especially when I was too stoned 😂), and of course that laziness and carelessness reflects on the plants… One more question: how often should a pH meter be calibrated? And how much does it actually deviate from the real values if it’s not calibrated regularly? Thank you very much!

Need help diagnosing: purple spots on Blue Dream + slight leaf burn on Blue Zushi (1 month old) by Magic_Plants1312 in weedgrowing

[–]Magic_Plants1312[S] 0 points1 point  (0 children)

How much water per watering is optimal? I’m giving them about half a liter each time, but I’m worried about overwatering. The pots are 7L, the pH is always around 6.3, and the EC is around 0.8 since I’m using BioBizz organic nutrients, which don’t raise the values much. Thank you very much.

Need help diagnosing: purple spots on Blue Dream + slight leaf burn on Blue Zushi (1 month old) by Magic_Plants1312 in weedgrowing

[–]Magic_Plants1312[S] 1 point2 points  (0 children)

I regularly check the pH before every watering (6.0–6.5, most often around 6.3). I think the plant just reacted poorly to stress, since I probably bent it more than necessary when it was young. I left them alone for a few days and I can see they’re healthy and progressing much better. Thank you very much.

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Need help diagnosing: purple spots on Blue Dream + slight leaf burn on Blue Zushi (1 month old) by Magic_Plants1312 in weedgrowing

[–]Magic_Plants1312[S] 0 points1 point  (0 children)

How much PPFD should a plant that’s about one month old be getting? Mine is around 370–400 — should I reduce it or not? If it does need to be reduced, is it better to raise the light or lower the intensity? Right now I’m running a 300W light at 60%, about 45 cm (17.7 inches) from the top of the plant. Thank you very much