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Weird coloured leaves

Screwie
Screwiestarted grow question 4 years ago
The leaves are yellow a bit on the outside and just today noticed that it looks kind of black too. Anyone know if this is because of a certain deficiency?
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Leaves. Color - Black or grey
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Mrs_Larimar
Mrs_Larimaranswered grow question 4 years ago
well its avery easy answer, its very good you took the light mix from biobizz. its avery good light fertilized soil. but plants have eaten up the nutrients plant need atranspplant now. tthen the will have again enough nutrients you can help them with a single calmag shot in the wattering after transplant theolder yellow leaves will stay, because the plant has cannibalised herself the other leaves will come back to lush green. its ok for the plant she can live for weeks like that...... its way better than overfertilisng
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Architect
Architectanswered grow question 4 years ago
However, in this size of plants I have them in a 2 liter pot before I put them in 11 liters pot
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Architect
Architectanswered grow question 4 years ago
let the pot dry a bit before feed again, is also a reason you may have issues, you can also spray cal mag (I do not know about biobizz , looked at) but with cal mag advanced nutriens you can definitely.. I hope light- temperatures and humidity are in balance, good luck 💪
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Screwie
Screwieanswered grow question 4 years ago
Thanks Architect! So i just have some Calmag and Biobizz Grow. Ive watered with both today. Hopefully that’ll fix it!
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Architect
Architectanswered grow question 4 years ago
looks like magnesium deficiency, of course it would be and nutrient lock because your top and the rest of the plant is thick, it would be and overwater, I would suggest making a mixture of nutrients (1000 ec) and 6,5 ph, throw as much as in the runoff you will get these indications
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