Hello, I am growing a Northern Light Auto (FastBuds) plant in organic super soil. It is currently at day 72. During the last watering, I added a supplement of BioBizz Bloom at 500 ppm. It has been 2 days since that feeding, and these spots have appeared on the leaves. What could be the cause? Thank you in advance for your answers.
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I cannot really tell if it is just coloring or a necrosis from too much Ca blocking the P or maybe a little of both. Has it been cold at night?
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I am running a 20/4 light schedule using an FC4800 EVO. The light distance is around 50 cm. I water with filtered tap water, and I usually keep the pH between 6.2 and 6.4. At night, the temperature drops to a maximum of 22°C, and during the day it stays around 27°C.
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You probably just got too much something in the pot. Nothing to do now but wait.
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