Sorry hotrodharley, im new to this forum buisness and was pretty wacked at the time of post, its in the first week of flower after four weeks in veg and im using rock ignite nutrients, yes its hydro 600hps , recirc system using perlite and clayrocks.
New growth always yellow then turns darker??? I cant say ive ever had this issue before...lighter growth to begin with yeah maybe, but not this yellow.