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Yellowing bottom growth

UncleOrganic95started grow question 5y ago

Noticed some yellowing in the older bottom growth, any idea what this may be? I'm thinking my pH meter is off or deficiency, not sure though.

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Leaves. Color - Yellow

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TheUk420Showanswered grow question 5y ago

Hmmm tricky one could be her shouting out for more nitrogen as yellowing on the bottom leaves going up usually is nitrogen I would try giving her half dose of your veg feed and seeing how you go I think it maybe too late for that leaf but it should stop the plant consuming anymore :) Best of luck overall shes healthy so good job.

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Rock_n_Roll_Randyanswered grow question 5y ago

Might be calmag deficiency. Look at your mars hydro instructions and see if it says anything about using Xtra calmag. Mine kinda looked like yours in a previous grow and calmag fixed it in days. Advanced nutrients sensi calmag has abit of nitrogen in it too. And Advanced nutrients rhino skin. Or any brand that is silica is really good too. Check out calmag deficiency photos and see how the leaves go weird blotchy yellow. I use calmag and silica in every watering. Just lower dose than it says.

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