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Is this a deficiency or some form of toxicity (autoflo/cfl 125w/ led 300w)

Quintusstarted grow question 5y ago

Hello guys i'm a new grower, I have 2 plants one Purple Queen Auto and one Northern Lights Auto. On the lowest 2 leaves of the purple queen there is this thing (picture) It is only there on one plant only and they have the same water each time (1L) Do anyone know what i'm facing

Quintus

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Leaves. Tips - Burnt

Leaves. Color - Yellow

Feeding. Deficiences

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TheSlimeGrowsanswered grow question 5y ago

Looks exactly like phosphorus deficiency. If you're watering with RO or distilled water, you'll need to add the essential minerals back in with some CalMag.

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