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Is this a seedling deficiency?
NPKAllTheWaystarted grow question 5 years ago
Today we are on day 4, and I've noticed that a perfectly healthy girl yesterday, is showing yellowing in her top leaves today.
Differences with day 3 is that I switched from 24h lighting to 18/6. The other details u can see in my grow diary.
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OutForRealanswered grow question 5 years ago
No yellowing , the light green is visible on new growths in general and the old leaf are darker , it’s the same with manny others plants in the nature , young leaves have « young green color » while they are getting older they are also getting darker.
24/0 is nothing to do with the color and I’ve never noticed a shock On the plants when I was switching from 18/6 to 24/0
OGgrowsanswered grow question 5 years ago
Hi @NPKAllTheWay plants with such a short life span do not need nutes to grow for now. plants at this stage tend to yellow due to excess water, the substrate must be soaked. try to apply less water in each irrigation and let the substrate almost dry out between each irrigation. good luck mate 👍
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DeadwebsiteBoringcommunityanswered grow question 5 years ago
Seedlings do not actually need nutrient feedings. No need to worry, she looks normal and fine to the Harbingers. We grow hydroponics and we only starting feeding after the second set of true leaves has emerged. Nice setup and great lights. You've got the workings of a great harvest there.
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Growkonganswered grow question 5 years ago
I assume that's just because those leaves are growing. New leaves first have a lighter color and change to a darker green with time. But I'm just guessing. I would observe that for a couple of days and if the color changes, then everything should be fine. Good luck!
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