growing problems please help

[drgreen29]

I got another three of my plants turning yellow and brown at leaves. Its weird how this is happening now cuz they were fine the whole time. I am a first time grower and seriously lack information. any help would be apprciated.

[Opie Yutts]

I'm guessing nute burn or N deficiency. But the latter usually has the plant turning lime green too, so I'm guessing burn. How much are you feeding them? Perhaps you should post in the plant problem area for better help.