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Is this light burn?
savethehumansehstarted grow question 4 years ago
I am pretty sure it is led light scald but just thought id try to verify. I have a new 650w Hortibloom light bar and have been running it between 400w and 650w at the top of the tent.
I'm guessing 650w, even at the top... is too much?
They are in soil, and I'm using gaia green
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Leaves. Edges burnt
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HeavyHittahanswered grow question 4 years ago
Yeah pretty sure that is light burn . I had the same problem last grow and stressed them out causing one to hermi. Even with my 500w quantum board at 32 inches above it was too much ppf.
PAR meters are expensive so if you want a cheaper alternative check out the MIGRO video on YouTube . He converts a lux meter into PAR. I now use a lux meter to give them optimal light instead of just guessing.
But saying that It could be potassium defeincy. That can look similar to light burn. 🤷
savethehumansehanswered grow question 4 years ago
The lower leaves burned right after defoliation opened up the canopy.
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