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Grow QuestionsYellow edges of leaves

Yellow edges of leaves

Kingsunstarted grow question 3 hours ago

My leaves have yellowed edges and some edges feel burnt. I'm sure it's not fertilizer damage, because all values are normal. Now it's around the fourth week of the growth period, PH:6.10 PPM: 550-630 Duration of light exposure: 18 hours per day.

Kingsun

Kingsun

Kingsun

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Leaves. Edges burnt

Leaves. Tips - Burnt

Leaves. Color - Yellow

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