Bobcat.Branch said:

Perhaps a couple drops of water landed on the leaves with the lights on, and burned a few spots?

Doesn't look like a big deal at all, as long as you don't see any signs of insects.

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hightech316 said:

Hello Gromies.

I have a plant that is showing " bleach spots " or " Rust spots " which usually would lead me to believe mag issues?

Plants are 21 days old.
78f/60rH

Amended with Build-A-Soil v3.0 nutrients and minerals / Organics Alive .
75% pro-mix
15% compost
10% worm castings

That being said , all the other plants are in good health, perhaps a blemish. ? The spot is on of leaf top and under neath .

Thanks for input guys.

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