Your plants appear to be suffering from a combination of too much water and the beginning signs of calcium deficiency (maybe) by the leaf curling. The higher your light nm, the quicker your plants will go through photosynthesis and therefore need more water from its roots. Also a Ca deficiency can arise from too acidic a soil pH, as certain nutrients are more “soluble” at a certain pH as opposed to a much higher or much lower pH.could have a little shock from something you might have done that could be contributing. Plants are subject to all types of stress