Qué ha pasado?
Frm11001started grow question 4y ago
It's the third time I've grown this strain and the third time it goes wrong for me. Literally, in 2 days it started with small rust spots like it was nutrient burn, I think, and today it spread a lot with those gray spots and the leaf deformation. Any ideas?
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CRiSPrGrowanswered grow question 4y ago
hey there Frm , basically in hydro you always need three things, NPK, calmag, additive. Right now you have NPK and additives, you need to add cal mag to prevent what you're seeing which is calmag deficiency. try to add also other beneficial bacterias not just the myco . If not, try to use something like fluvic acid as an additive. Hope this help ! 🚀
Coopmcanswered grow question 4y ago
Old lower leaf it’s NPK defitency most likely phosphorus trace elements show in new growth first
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Frm11001answered grow question 4y ago
- pH meter with a new electrode and calibrated before starting the grow, I kept the pH at 5.8 always, the pH fluctuations were never significant.
- My filtered water contains 150ppm, I started with that the first week, increased to 250ppm halfway through the week because it seemed low, and in the second week, I started with 350ppm and mycorrhizae.
- I just started to see rust spots on the leaves thinking it was over-fertilization, I decreased the ppm back to 250 but the problem didn't stop.
Any ideas? This is the third time this has happened and I want to get it right for next time.
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