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white spot
NobodysBudsanswered grow question 4 years ago
i'd' give it time, i don't see anything alarming in diary. Early leaves aren't the prettiest.
is it a pale spot? what kind of 600w led? 600w from wall? 20" is likely too close and if that paly spot expands and you answered yes to any of that, then you need to move light further away. strips or quantum boards would be different and likely okay at that height, but no need to provide that much, yet.
plus, your top 4 leaves look to be growing from the same spot, as if there's no internodal space. Another sign it's too close.
It may take a few days before it starts growing again, if this is the case..
Fruitgroweranswered grow question 4 years ago
It could be salts from your watering, I presume and hope you're not using nutrients yet. But your water may have high ppm which could be collecting on the leaves. Try to wipe it off with a wet cloth. Could be spider web, check under the leaf. Could be a kind of mould or virus, check everything is clean and sanatised, your hands when touching them, your clothes, your area, your growing container. Other than this I don't know what it could be? 🌱👍
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Nor_Cal_Kannablissanswered grow question 4 years ago
Could be calcium from hard water. There's no pic so it's just a guess. Happy Growing!
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