Biocanna+bio flores 20 ml per 10L + Rhizotnic 5ml per 10L
Overwatered ?!? When i water them the soil is dry and the pots is light .
Are these on a basement floor? Cold roots could be or transpiration.
The leaves are swollen which means the plants not transpiring well and the stomata are closing... cold roots, over watering (lack of o2), high humidity and poor air flow around the leaves, nutrient buildup can all cause that individual or in combination.
To me it looks like cold roots or over watering. Could be very compact soil contributing.
Are you watering to runoff using organic soil and organic nutrients?
Are you tenl adjusting the water?
Are the plants sitting on a cool floor?