Dark spots on fan leaves

CountDoobie
CountDoobiestarted grow question 9mo ago
The fan leaves of the 2nd & 3th node have developed dark spots on the leave. What is this? and what is best to do?
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Week 4
Leaves. Color · Black or grey
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JUNGLE_B4RNS
JUNGLE_B4RNSanswered grow question 9mo ago
This is nutrients burns. Your problem is "wrong plant size in wrong pot size". Pouring small amounts of water and getting no drain, NaCl is building up. Give your plants a good watering to get some drainage and everything will be alright.
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AestheticGenetix
AestheticGenetixanswered grow question 9mo ago
Dechlorinate your water or boil and cool it. Looks to be chlorine toxicity to me. But the other option would be calcium magnesium deficiency/issues.
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HinduGod
HinduGodanswered grow question 9mo ago
LOOKS LIKE DAT COULD BE A FUNGAL ISSUE!!! HAVE YOU SPRAYED DAT PLANT WITH ANYTHING!!! SOMETIMES DAT CAN BE VERY VERY BAD!!!!!
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DrGruen
DrGruenanswered grow question 9mo ago
hi ...... that looks like a Cal-Mag deficiency to me.........but it could also be over-fertilization...... I would water with Cal Mag according to the manufacturer's feeding schedule and skip the other nutrients. After a few days, you'll see what the issue is and can adjust accordingly. Good luck!
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