Need help diagnosing spots on leaves

Skillcraft

Well-Known Member
I posted this in the newbie forum but seen this afterwards. I have spots on my fan leaves that are closest to the lights and is only on 5 leaves. I believe it may be from the lights but am not sure. I am on day 22 of flowering and do not want this to become a problem. Any help will be greatly appreciated. Thanks in advance
 

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It’s really hard to see any spots in the pics you took.
can you post new ones? What’s your medium? Are you feeding nutes? Are they spots or holes?

first thing that comes to mind is calcium deficiency
 
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