Mag problem?

dankness19

Well-Known Member
IMG_1157.jpg View attachment 3026862
Heard somewhere that LEDs cause a mag problem is it true? I believe I got one dont remember nute wise what I did but Leaves turning yellow then white and crispy, tips of leaves brown curling up, affects older leaves then moves up to top..think it mag problem dont know for sure thinking about getting some sledgehammer any thoughts?
 
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