Yellowing, dying leaves - nitrogen lockout?

[Louis]

Have a Green Cr@#k plant with the leaves turning yellow and dying on me. I think the ph may be a little to high and am locking out N, flushed with RO water to see if she improves. Also using GH 3 part and and in Fox Farm OF, any feedback or suggestions would be appreciated, thanks. ... Shift+R improves the quality of this image. Shift+A improves the quality of all images on this page.

 

[Icemud]

Re: Yellowing, dying leaves.....nitrogen lockout???

Possibly a potassium deficiency...?

Cannabis Plant and Pest Problem Solver - Pictorial

 

[Louis]

Re: Yellowing, dying leaves.....nitrogen lockout???

Possibly a potassium deficiency...?

Cannabis Plant and Pest Problem Solver - Pictorial

Could be Ice..... looks like I am going to have to study that thread a little bit. Thanks for the link and input Icemud. ...