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Yellowing cause?

Ishkabudstarted grow question 2y ago

What could this yellow and brown spotting be on the uppermost leaves? Also the curling? They are autos, i am giving them half dose of bloom and phospherous nutrients, as well as half dose cal-mag, temperature isnt overly high, watering every 2-3days until runoff.. bit confused

Ishkabud

Ishkabud

Ishkabud

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Leaves. Curl up

Leaves. Color - Mottling

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AsNoriuanswered grow question 2y ago

Nitrogen and calcium TOXICITY.

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