Horrible brown spots

any ideas what this could be folks ?
Bergmans Gold Leaf Auto / 9 weeks and 2 days from sprouting /

is this a a Cal-Mag thang ?

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Looks like water may have gotten on it.

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maybe nute/water burn eh?
thanx for replying

Yes. That’s what it looks like. Happy growing!

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if only the bloody sun woud shine on my greenhouse !

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