Plant issues brown spots

I have had this issue for about 6 days now and it keeps getting worse.
It is only on one plant.
I flushed the plant and then gave it two shots of cal mag so far. I also moved the light back a little but the spots keep increasing.
It is only appearing in
In this one area right under the light. There are no spots on growth under the canopy.
 

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Grow So High

Well-Known Member
I have had this issue for about 6 days now and it keeps getting worse.
It is only on one plant.
I flushed the plant and then gave it two shots of cal mag so far. I also moved the light back a little but the spots keep increasing.
It is only appearing in
In this one area right under the light. There are no spots on growth under the canopy.
It’s a calcium deficiency, are you growing in soil or coco?
 
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