I have searched high and low but cannot find a reference or pic for this. Any thoughts? It’s only on two leaves (one leaf on each of two plants).image|374x500
Are you spraying water while light is on?
Water will bubble up and become a magnifying glass. Remember burning up ants with magnifying glasses? Same thing. Is why it’s just a spot or two
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Looks like U splashed nute water on the leaf.
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I think these guys are on the right track nute splash or water burn
I’d keep an eye on them but if it’s just one leaf, I wouldn’t sweat it too much.
Thanks much! First grow, first splash. I’m learning…