What ferts are you using? During the veg stage, you should be using something high in N(N-P-K). If you are not, that is most likely your problem.

What strength and how much fert are you giving them?

It's hard to tell if it's overfeeding or a N def.

Tell us what the n-p-k ratio of the ferts you're using, how much, how often. Knowing that we might be bale to help diagnose it better. If you are using no ferts, that's your problem.
Nochowderforyou Reviewed by Nochowderforyou on . another problem... yellow leaves *pics* HELP!!! well my plant just recovered from a pH issue and now ive got another problem. my plant is about 5 weeks old, about 9-10 inches tall, is working on putting out its 11th node of new leaves. i thought it was in generally good health, but i noticed that the bottom most leaves were turning yellow. i thought nothing of it as i figured that they just werent taking in enough light to be valuable to the plant anymore. Rating: 5