Worried ? What's it missing?

Switched nutrients and lighting to 12/12 and it looks like this

any advice???

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It would be good to know something about substrate, water amount, watering frequency, and nutrient schedule or fertilizer.

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I would very cautiously consider a nutrient excess. Leaf tips are starting to turn yellow-brown at the top. A pH problem looks different. However, to be able to say something more accurately, more information is needed.

Regards, Paule

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That’s massive if your just flipping to flower, good for you! If height is an issue I’d starting doing some low stress training asap cuz it’s most likely going to double in size during the next 4 weeks

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They look starved for nitrogen. Without knowing what medium, pH in and out, ec, nutrients and at what dosage. Also help but not crucial would be environmental parameters. If you could give us that info we may be able to help more.

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After reading it again, I think I know where the problem lies. You switched to 12/12 and immediately added flowering fertilizer.

That’s how I read it!

Actually, from the start of flowering at 12/12, the stretch begins, lasting a good 3-4 weeks, and precisely then they still need growth fertilizer, which you optimally reduce from the third week of flowering and then introduce the flowering fertilizer and gradually increase it.

Here, on the one hand, a lack of nitrogen and an excess of phosphorus, etc., due to over-fertilization accumulates.

Leave out the flowering fertilizer for another 2 weeks and give growth fertilizer, and then in 2 weeks make a gentle transition. Greetings from Pflanzenpaule

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I agree with everyone that’s says it’s hungry. It definitely looks to be nitrogen-deficient. I would suggest some Cal/mag, it usually carries nitrogen with it. All 3 are good for helping photosynthesis. I think the Cal/mag will complement the nitrogen nicely to hopefully get some green back in your plant. Make sure your pH is always good before adding it to the medium. It doesn’t matter how many nutrients you have in the medium if the pH is off.

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And depending on what you mean by switching nutrients that’s probably where you fucked up. But again I can’t stress this enough do not use chemicals. Only organic if you’re going to use any kind of boosters or anything…To me you’re using too many nutrients stop using nutrients and go get distilled water and water a half a gallon each plant in the morning a half a gallon at night and then whenever you go into budding stage You don’t over water it and don’t underwater You get to go buy you a soil tester a good one and this sticking in each plant and check your fertility your pH is a big thing that’s why I used to still water. But me I don’t use nothing and Like this is where everybody messes up do not use any kind of chemicals at all I cannot stress that enough I never use chemicals in 10 years I used distilled water and that’s it in my butt is more potent than any dispensary ever here’s some pictures of my outside and indoor in my clones I water mine a half a gallon everyday in the morning and every night then I’ve talked it five times the ones outside and they’re still almost 6 ft tall I am already budding they’re beautiful looking buds I the strains are sour diesel g13 purple macaron number 4 energy Kush the sour diesel and the OG Kush are outside side by side I’m hoping to kind of cross pollinate a little bit. But do not use nothing except for distilled water in Fox farms frog egg soil that’s it that’s all I use I never use no bloom booster I don’t use none of that bullshit and I’ll show you some of my buds too. And again everybody’s on the comment on this shit and I’m telling you now I’ve been doing it for 10 years and never had an issue in my shit is way stronger than any dispensary I promise you 100% on my grandkid…. And just so you guys know I grow in cycles I back to back to back to back that’s why I got some small medium large etc I keep cloning and cloning and cloning. And as again as I stated mines way better in dispensaries and I’m actually been told to I should should submit it for high times.

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