What is this problem???(sos)

Robbyl617781
Robbyl617781started grow question 5y ago
Can anybody help me identify this issue it’s taking over one of my better plants! Don’t know if it’s a lockout or calcium deficiency or what it is?!
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Week 7
Leaves. Color · Dark-brown
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Roberts
Robertsanswered grow question 5y ago
Progress potassium deficiency
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BeautifulCraftRreddit
BeautifulCraftRredditanswered grow question 5y ago
yeah its looking like a calmag issue with the majority of spots stemming from the margin.
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MrStinky
MrStinkyanswered grow question 5y ago
Hey buddy! Last pick does look like it needs a dose of calmag.
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