Several Updates
I won't lie, the plants are sad.
It has been a lot of diagnosing these last few days and I've settled on a couple hypotheses. First the symptoms:
-turgid leaves curled down
-yellowing lower leaves
-especially bad yellowing on back left plant with deadening on one large early leaf
top theory is ph driving a nutrient deficiency, especially magnesium. I was quick to think the issue was overwatering but I think what I am seeing instead is ph lockout as the water management didn't make things better.
Second theory
genuine lack of nutrients. I haven't started supplementation yet so that is entirely plausible.
Both theories have the same answer which is a ph'd feeding with nutrients. I also turned down the lights to rule out light problems and generally ease things up on the plants.
The back left plant is certainly the runt this grow. Mostly from my own topping mess up but it also is taking these issues harder than the other plants.