Since the whole plant looks slightly discolored, you have a mobile nutrient problem. If you have nutrients in the soil they shouldn't be used up yet, so I would suspect not the proper pH which is causing a lockout. But if you check the. Run off pH and it comes back between 6.2-7.0 your fine and should add nutes. But just a heads up dry nutes take time for the plant to uptake. But good job growmie, keep up the good work and you will get that chronic