i think combined, organic nutes, with rockwool 1" cubes + hydroton, is the problem, ive been noticing what i thought was little root rot, was nutes just chillin all up and over the roots. now in the pots i dont kno cause i cant see in them and flushing doesnt seem to work. you need to us your foilar spray bottle on jet to get it off. now the sick plants roots arent bad they look very good and i dont see any build up like on some of the others, however inside the pot may be diferent ive spent a good 30 mins diggin out hydroton and just spraying the roots, getting rid of any excess build up. i think with the rockwool its killing the abilty for the water to just run strait down and out. I would seriously crack up if this was a strain llike jack herrer, and ofcourse i have no idea. well bag seeds will do this i guess.