You're not alone. I'm ready to give up on autos and go back to photos, which I have zero problems with, and get a nice harvest. My plants end up looking just like yours. I can't imagine how many I've tried to grow, but would guess it's right around thirty. They sprout immediately, come out of the gate niceky, then the wheels come off and they literally quit growing. I see all these pics of guys 'first auto grows' of amazing looking plants, and I'm baffled. I have a Infinty inline fine, and my vpd is in specs most of the time. I've tried different watering amounts and techniques, and nothing changes. I always end up with stunted, shit plants. I'll probably try one more round, although I have no idea why, other than I have a large cigar box full of seeds.