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Grow QuestionsIs this light burn?

Is this light burn?

Darth_Chastarted grow question 4 years ago

I have discoloring on the top leaves of the plant. It started today and I think it has to do with the lights, so I‘ve turned them down and moved them up about 1-2 inches. Can anyone confirm if I’ve diagnosed it correctly and if not what the issue might be. Thanks.

Darth_Cha

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Leaves. Color - Pale

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Fruitgroweranswered grow question 4 years ago

I don't think it's to do with the light. Looks slightly pale, try upping your nutes /ppm slightly should be around 400/500 for this stage. And yes decease your ph to around the 6.2 mark and you may see some difference. You'll want to increase your humidity some how, I believe your leaves look like they're clawing up which suggest lack of moisture in the air. 🌱👍

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Darth_Chaanswered grow question 4 years ago

Thanks for the response! I went and bought a cheap humidifier and once I added that the leaves perked right up! I’ll add the modified water the next time water the plants.

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Darth_Chaanswered grow question 4 years ago

Thanks for the suggestion! I’ll try lowering the PH a little more for the next watering. The new growth isn’t showing any yellow but I’ll keep an eye out for it. I can’t measure the lux due to budgetary restraints.

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DeJaVuanswered grow question 4 years ago

I see you PH is 6.6 would try lowering it to 6.0-6.2 to start with. On the spider farmer sf1000 you should not get any light burn at 60cm. Have you measured the lux coming from the light? It might also be some iron deficiency starting if the new grow is a yellow color.

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