Why is my WW seedling browning?

LKABudMan
LKABudManstarted grow question 5y ago
I have a White Widow seedling that is showing brown spots. I am not sure if the LED light was too close, or if it is showing nutrient deficiencies/excesses. pH=5.8, PPM=160 (80ppm in well water).
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Week 1
Leaves. Color - Dark-brown
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DudeGrowsWeed
DudeGrowsWeedanswered grow question 5y ago
Are all 4 doing this? Or just one? If just one, I’d check to make sure the air stone is clean and passing air easily. Good luck
LKABudMan
LKABudMananswered grow question 5y ago
Only one of the four plants is showing these brown spots. I will check the stone on this bucket to make sure it is unobstructed. Any other ideas?
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