Robertsanswered grow question a year ago Nitrogen deficiency starts at bottom and works its way up. If anything you are running kinda strong on Nitrogen. You are seeing new growth. Leaves start a yellow white looking color. They turn green when light activates
the Chlorophyll in the leaves. The sade of green in older leaves will tell you how much nitrogen is in plant. Dark green, Shiney or leathery leaves that claw downward is nitrogen toxicity.