I noticed this site doesn't have any FAQ's. I go to:

www.overgrow.com

I have learned everything that I need to grow from that site. Check the FAQ's there. They have a mountain of good, reliable info.

And no, you aren't suppose to use ferts until about 3-4 weeks in, that's why I was asking. How old are your plants? Sorry if you said already, I missed it. If your plant is 3-4 into the veg cycle, and you said you haven't givin it any ferts yet, that's what it probably needs. I'll update and look for your pics later. Peace.