As @GNick55 said absolutely not genetic. How would you explain the others at his buddies doing absolutely fine.It's a genetics thing . What you should do is clean them up and train them. So you don't have issues later. Best of luck with the grow.
So you used a different soil? Much higher in nutrients I assume? What's the soil?I just turned the purple light on for the pic and negative I haven’t added and nutrients to it but as I am a newbie I used the wrong soil and used mg
Is yours warner and drier? Just trying to figure out why I see such a difference in the nutrient uptake. Unless it's a P uptake issue... but I don't see the other signs.We both used medical grow