IS this normal

[speero_m]

here are the pics of JH plant JAck H. its in the 3rd week of flowering and the leaves are turning yellow the rest is.
i knowits ok for the leaves to turn yellow but at this stage isnt it soon any suggestions.
PH 7
adding nuts every week NPK 4-3-5
temp 27c

Please need advice thanks.
http://www.marijuanapassion.com/forum/attachment.php?attachmentid=54621&d=1207474767

http://www.marijuanapassion.com/forum/attachment.php?attachmentid=54622&d=1207474767

http://www.marijuanapassion.com/forum/attachment.php?attachmentid=54620&d=1207474767

 

[karmacat]

They don't look to bad to me,but can you take a picture without the light on,its had to judge with the light on.

 

[speero_m]

here are pics with no lights. thanks for the prompt reply

 

[DLtoker]

Hmm... It looks as if it could be some lock out of certain nutes. When was the last time you flushed? If it's been a while, you may want to look into doing so.

 

[speero_m]

My GOD, i cant beleive it is happening all over again guys i have no idea what to do...i think i have problem with the soil bec before i never had one yellow leave untill like the end of flowering phase now i feel im going to have yellow leaves on the starting with seeds HELP....

Note: i just flushed it now.
Northern lights 3weeks into flowering
ph 7
nuts every week 4-3-5

 

[lyfr]

i agree with DL. hopefully the flush works. loos like lock-out or lack-of nutes. if the flush dont work the only i could suggest is changing nutes or changing soil...but beware,im just a hydro guy!

 

[Puffin Afatty]

:farm:
I dont do soil anymore, but that looks similar to a nitrogen def. I saw once. can be caused by ph issue, nute imbalance or maybe by overwatering. I'd try juicing her with a little nitrogen and see if she perks back to a darker shade of green, all other issues being addressed.