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MarianPazdziochstarted grow question 3y ago

My plant is 3 weeks old, and yesterday the first leaf is starting to turn yellow. The temperature is 29°C, humidity is 50%, and I'm using a 250 W HPS lamp. The pH of the water is 6.4.

MarianPazdzioch

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Leaves. Color · Yellow

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Do_it_Dananswered grow question 3y ago

You feeding NPK? to me it looks like a nitrogen deficiency. If not feeding the I suggest you give it a small dose.

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Strainhunter235answered grow question 3y ago

I would just keep observing for now and not take any action.

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