Brown and yellow nightmare

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Autoflower in soil 5 week veg and this is on fan leaves..Been giving advanced nuts micro grow and rain water so if anybody could help i would greatly appreciate it...im in soil with perlite allready mixed...Not Miracle Grow...
 

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I just went thru 6 months of this hellish problem...looks to be nute lockout, adjust your pH and it should green right up...
 
Boo could be right. At any rate it isn't a major problem. If using distilled water use 7.5 mil/gal and adjust your ph to 6.5
 
Its only on 2 of the lower fan leaves..nothing on new growth and nothing on my other plant right nxt to it...the 1 on the right is waaay taller also...i believe i am using the same nuts on both plants...i will have to check my notes
 

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Its only on 2 of the lower fan leaves..nothing on new growth and nothing on my other plant right nxt to it...the 1 on the right is waaay taller also...i believe i am using the same nuts on both plants...i will have to check my notes

Your fan leaves are a good key to what is going on because they get the nutrients first, I think that is right. Someone might correct me, but the problem will go up into the rest of the plant if it isn't corrected.
 
Buy you a bag if RAW NPK silica and a ph up and down kit. Silica is a must for new growers especially. It really helps plants be stress resistant and fight off ph and other stressful situations. It also does other wonderful things. Its a must have IMHO and i would not start a grow without it
 

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