Yellowing leaves

Hello hopefully someone on here might be able to help me this is my second grow first one did not go so well this time decided to use organic super soil instead of nutrients 4 weeks into flowering I am having the same problems I had the first time with the yellowing leaves happening on all three plants all three different strains I'm going to include pictures can somebody please help?

I have found these really helpful

http://www.ilovegrowingmarijuana.com/identify-marijuana-plant-problems/

https://www.google.ca/search?q=chart+of+cannabis+leaves+with+disease&dcr=0&tbm=isch&source=iu&ictx=1&fir=W98sXQf7IWpQEM%3A%2Ck2wgm7yQeTV3UM%2C_&usg=__BASBvSM8dJ4DzMM-gx70YjEF6uo=&sa=X&ved=0ahUKEwj5kYmmp-DZAhVrmK0KHSK0Cq0Q9QEISDAC#imgrc=W98sXQf7IWpQEM:

Once you see what 's going down, check with who ever supplies your nutes ... they are a wealth of information .. if they don't then you might want to source your supplies where they provide customer support. I found one, right off the top and they offer endless feedback and expert advise.

Hey mate.
You have lockout.
What ever it is.
Ph?
Ec/ppm?
Good luck
Tim

Tim1987 said:

Hey mate.
You have lockout.
What ever it is.
Ph?
Ec/ppm?
Good luck
Tim

Click to expand...

Using M3 organic soil no nutes unfiltered pH water at 6.0 soil pH is at 6.2 keep them at 75 degrees 40% humidity

Once you see what 's going down, check with who ever supplies your nutes ... they are a wealth of information .. if they don't then you might want to source your supplies where they provide customer support. I found one, right off the top and they offer endless feedback and expert advise.[/QUOTE]
Very informative but still can't quite diagnose my problem

Ph? Adjust
EC/PPM? Adjust.
Now.
You have lockout for sure.
Check em again tomorrow.
Tim

You have lockout for sure.
Check em again tomorrow.
Tim[/QUOTE]

My PPM is at 1:50 but my pH is at a 7

Bowagart420 said:

You have lockout for sure.
Check em again tomorrow.
Tim

Click to expand...

My PPM is at 1:50 but my pH is at a 7[/QUOTE]
Get the ph to 6-6.5.
Go from there.
Good luck
Tim.

Check for rot aswell. First.

Tim1987 said:

My PPM is at 1:50 but my pH is at a 7

Click to expand...

Get the ph to 6-6.5.
Go from there.
Good luck
Tim.[/QUOTE]

Will do guys I'll update

Bowagart420 said:

Will do guys I'll update

Click to expand...

I had mistaken reverse oz water to be auto ph'd .. i was wrong .. when i started the new ph to 6 my plant began to "perv" (went nuts in bud develpopment and trich production .. it was plain as day) they give good advice here on this one. I found this out on my first flush last run, and i was in disbelief .. good thing you caught her early.

Make sure my water was pH correctly watered them last night got up this morning and they plainly look worse than they did yesterday something is bad wrong I'm freaking out I'm using organic soil so from what I understand I can't flush and if I do have Newt lock what am I supposed to do about it if my water is correctly pH any help would muchly be appreciated basically every time I water the next day my plants look worse

Ec/ppm's!!!!
Nowww!!!
Compare to your ph.
Match it to an availabilty chart.
Test your ec/ppm. Dont get lazy.
Good luck.
Tim