Is it possible to drop the pH on that one?Yeah it's the lighting, I've been feeding them heavy right now I was giving them 1.6ec the past 3 weeks and bumped it up to 2.2 ec the past week to try and get that lighter colored plant to darken up but I think it's the pheno because if you look at the first pic with the lights off they look more normal
What is your ph? 5.8
Stay safe
Bill284