Ok great thank you !. I just didn't think it would start turning color till later in flower(day30or so) in witch case i know it's normal . I will update Ina couple weeks .*thanks again*Uhm...don't worry. Looks like the typical N deficiency in flowering, especially if it starts with the lower, large leaves. It's normal! But yes, let them dry out between waterings...but I don't think it's anything to worry.