I have six plants vegging under T5 flouros while I get my grow room set up. All of them have been fed and watered exactly the same and they are all looking awesome but one. Out of seemingly nowhere this one plants leaves are drooping. I have RTFF and there are several things that cause this but why just one plant when they have all been doing so well. I am feeding AN nutes and use r/o water,check everything with my meters blah blah blah but again why just one plant. The plants are in 4 inch rockwool cubes sitting on a rockwool slab and should be going into an ebb and grow system tomorrow.