Hello,
With the plants drooping and clawing down, i agree with everyone about the overwatering aspect....what sort of bags are they in? Is there drain holes at the bottom?
But i also was a bit worried at the leaves very dark appearance with the clawing...because I usually associate that with too much nitrogen.
So I'd say water less, increase drainage, look into how much "grow" nutrients you use, and add a fan nearby to help dry them out quicker.
Good luck with the problem solving. Happy growing. ✌️