Ok I'll say 35-40 oz.
Please don't make any pricey adjustments. Next time run x plants under each light. Train em.
Get those cords up up and away! Couple of 2' racks, or build a structure you can use for power strips and trellising.
Looks like soil, is it soil? No bottles in pics except what I think is laundry detergent. .
What nutes are you using?
The way you grow (organic, coco) determines much.
U have a veg room?
Where will you get your genetics?
We will get you over 5 next time. Don't trip on these fools.
Bless Up