1 of 4 plants has dry looking (don’t feel dry) leaves. There is no curling, but they are half the width and about 2/3 the length of three other plants started at the same time.
The plants are about 4 weeks old and all in a recirculating DWC setup indoors with a grow tent and LED lighting.
the sick plant leaves are a darker green than the rest, but there is no yellowing or other color clues other than it being like a hunter green vs the bright green of reasonably healthy new plants.
There is almost no curling the leaves are simply shrunk down and looking dehydrated.
If I spin the plant, it will lean towards the light, so it’s not dead yet.
Since all 4 plants are eating the same water/nutrient mix, it’s unlikely to be a nutrient problem and if it is, I’m not sacrificing 3 plants to save 1.
Any guesses as to what’s wrong?