Yellow Leaves - Nutes didnt help!!

Pretty sure as long as its the lower fan leaves, this is normal. The lower growth will yellow and die off, happens at this stage of life..I'd leave it be and not worry as long as the upper half is looking nice and healthy. Looks like something is gnawing on your plant though :/

Update!

Seems like the problem isnt spreading any more and the leaf pictured above is still pretty much the same, maybe a little more yellow, but the problem doesnt seem to be spreading.
Fingers crossed this is my last problem!

Does look like something has been chewing on it may want to just double check make sure you don't have an infestation but as long as it isn't spreading then yay for you lol and you will want to get rifd of those sick leaves that is if you haven't already

rene112388 said:

If its not ph I'd say check for bugs had some started that looked like that spead quick ended up being spidermites they suck the nutrients first I thought it was ph ruled that out then nuts wasn't that either by the time I noticed the mites was too late they move quick

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mites leaf white specs from where they feed def not mites.

420God said:

It looks like the plants around it are affected also. Are your plants rooted to the ground or just inside that bucket?

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this is right look at your other non MJ plant it looks to have the same thing. i personally thin that the soil it is in is staying to moist and caused a fungus. it almost looks like blight. also marijuana does not always yellow near the end if your still feeding nutes high in N then it wont turn yellow and lots of people keep them green till harvest. also what is the NPK ratio of what you ar feeding your plant.
and another thing is the super thrive you using is probably not doing anything for the plant. super thrive kills more then it does help. the only time you should use it is on trying to root cutting or on a very stressful transplant and still i would use half of what was recommended.

but again i think you should look at your first pic on here posted and look at the plant to the right of your MJ plant looks very similar.

the plant needs to be fed more N
and Mg or P
all in all,its starving...just feed it more

Im going to feed it a bat guano tea today and see if anything improves.

Thanks all!

U def had a ph problem before whether it is the water or the soil or both, and the worst thing to do before it is completely fixed/stabilized is to start feeding it nutes. It only compounds the problem. Things start to look like deficiencies not because they are not there, but because a high amount of something else being present is blocking the absorbtion from the plant. If your plant is still in the bucket, flush it! And, leaves do turn yellow during the advanced flowering stage, but naturally yellow, you wouldn't have any brown spots. Especially the way you do, lol. Ph often affects humidity next which is the perfect atmosphere for pests. I would def look into seeing if you have any pests flying or crawling around. Anything you plan on trying do one at a time, and give the plant time to correct itself before compounding the problem. I know I didn't exactly pinpoint your problem, but I hope this helps.