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What’s happening?

Newbie101started grow question 4y ago

My plants always had dark complexion. Feeding less N didn’t change anything. Last waterchange I didn’t add(extra) calmag. beside the calsium and magnesium that was in the GH flora tripart (hydroponics). Is this a calmag deficiency? Notice twisted/mutilated leafs on some top growt

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Leaves. Edges burnt

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Organomananswered grow question 4y ago

P.S. - Try and keep your grow space clean and tidy, all those fallen leaves are a prime place for pathogens to breed!

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Organomananswered grow question 4y ago

No, it is burning and not a calcium or magnesium deficiency, which will show up as polka dots on the leaves. Feeding less nitrogen will not show on the older leaves and will take 2-3 weeks to have any noticeable effect on the new growth. There should be more than adequate amounts of cal/mag in the GH nutrients, cal/mag is really only an issue when growing in coco coir. A few funny leaves is quite normal, no plant will ever have 100% perfect leaves, 100% of the time. Your plant is very dark green, going to half strength nutrients for a week or two might be adviseable and will not cause any problems.

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