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What is this leaf showing?

CroqueMonsieurstarted grow question 6y ago

Anybody knows what is going on with this plant? My first guess was nitrogen toxicity because of the leaves clawing down a week ago, but I am not fully sure anymore with how the leaves are looking now.

CroqueMonsieur

CroqueMonsieur

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Leaves. Curl down

Leaves. Color · Yellow

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smoke24answered grow question 6y ago

You have 2 mars hydro at 17 inches.......i'd say too close upper leaves bleaching and becoming "3d" looking are signs of light stress. Notice how the plant in the back isn't affected, because its not directly under the light. In veg I usually have to keep my light at 23 inches to avoid light stress. In flower i'll go down to mabye 18 depending on how they take it. Happy growing.

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