Growing black sugar strain

Hi there, this is due to overwatering. You can tell from the downward pointing leaves, and the "puffy" space between the veins of the leafs. To fix this is simple just skip a day or even two when you're going to water the plants next. to never over water again, try the "lifting pot technique" . Hope this helps ! 🚀

The plant looks good from what can see. As far as the leaves drooping check to see if the pot is heavier than the rest. It may just have more water in it causing that to happen. If that's the case water that one less and it will perk right up.

In how others were responding I would of not moved your light. The others are really happy by leaves signs. Is likely too much water or not enough. Causing droopy leaves. I recommend maybe rotating the plants and watching how much water is given by using weight of potters to judge water weight. Good luck and happy growing 🤜🤛🌱