Yellowing again same as NS diary. Week 5, ph is go...

Hey dude - I’m a summary look and although I’d prefer some more detailed photos, you got light burn bud. You can tell with the minor cupping in the leaves in combo with the yellowing. I don’t believe it’s underfeeding, that would translate to different looking problems and the cupping is textbook. A 750 in that space could very easily cause this I would think too (although not an authority on hps). If you can bump distance, great. As far as feedings are concerned, I don’t know ur specific ratios but 2ml is fairly light this late in the game and you likely have another week before flush. You could probably up the feed strength for a week and give er an extra boost before the flush and harvest window opens up. Hit me back if u have some better photos and wanna chat on it👍 Good luck dude👊

Based on what I here I think its Mag deficiency to be honest because of the yellowing in between the veins thats a good indicator to me that it's mag deficient . If it was cause of the lights your leaves would be curled up and they would brown from the tips not turn yellow . Everything in the sense of humidity is fine the temps are fine . So my prognosis is that its a Mag deficiency . A very simple fix go out and get yourself some CalMg and add it in to your solution . You will notice the yellowing slow down and then stop all together . I might also advise that you dont feed with nutrients every watering , this will help you prevent unwanted Calcium build up as well as make sure you use up most of the nutrients available to the plant before putting new ones in the soil . Over all your in great shape just a nice simple fix and those ladies will be rocking and rolling harder then iron maiden ! I hope this information serves you well on your journey into growing cannabis ! - Happy Growing!