Hey, Invision. Was feeding Veg nutes. But have recently tapered that off after seeing the damage. pH is right where it has been the whole time. I dont think that is the problem. I am currently researching the Mosaic Tobacco Virus after reading about it here. But it seems that if that were the case, it would be on the plants in the left-side veg and the flowering box also, but it is just under the HPS.

TGF