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Leaves turning light green -- yellow (after 12h day/night rhythm)
Bunterbiberstarted grow question 9mo ago
Since I started with 12h daylight/dark rhythm a lot of leaves started to turn yellow (older and lower ones first, some branches turned red). What I did:
PH value=6.5. I added CalMag--no effect. I flushed the soil --no effect. Do you have any ideas? Thx green thumb-friends 👏
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modmyplantsanswered grow question 9mo ago
That’s the stretch brother, that’s where the plants needs the most light and water in all her lifecycle. She’s missing N due to deficiency, wrong pH or water amount/schedule
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Krisisanswered grow question 9mo ago
I would say initially it was probably lack of nitrogen giving issues. Now that you have flushed she’s probably in need of everything. If it was me, I’d give her a feeding with grow bloom micros and some of your calmag. She’s probably pretty hungry as flushing has probably removed three things
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LetsGrowSomeanswered grow question 9mo ago
Looks like nitrogen deficiency to me. They still need a little nitrogen even in flower. It looks like you haven't given any in a while based on your diary. Give them a little nitrogen and they should start to green back up.
Best of luck! Happy growing!
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