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Copper spots

MrFinkstarted grow question 4 years ago

I noticed these copper spots and leaf tips about a week ago, it doesn’t seem to be progressing too fast. The plants otherwise seem to be healthy but what is the issue? Magnesium Def?

MrFink

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Leaves. Color - Dark-brown

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Robertsanswered grow question 4 years ago

What I see is too much nitrogen in flowering. The glossy dark green is a good sign. Should take pictures in white light, very hard to diagnose when it is not under white light. Too much nitrogen in flowering can hinder bud development. Next is potassium deficiency is causing the spots. Potassium is the most needed nutrition in flowering. For potency, and some of density. Plus strong growth. So basically a nutrition inbalance is the issue. Ph can cause problems lower ph in substrate acceptable range is good at absorbing nitrogen. Higher ph in range is better for potassium absorption.

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