After 3 weeks SHOCKING, 18hrs light periode and low-dosed CO2, start the plants normal grow and renew the collour. The plants was drowned not only from 20×20 cm rockwoll cube full with water, also from using of CO2,  this was counter-productive. Normaly go substrate growing from wet to dry, wet to dry,… but hydro is just WET.   

RESUME: DONT USE CLONES FROM SUBSTRATE FOR HYDRO GROW AND BEST, USE CLONES FROM MOTHERS LEAVING IN HYDROPHONIC SYSTEMS.