cool,what i dont knew or tryed i wont guess,once seeds sprote and u see a littel white root.CAREFULLY pick up and make a hole in ur rock wool block with tooth pick quater of a inch.soak ur blocks the nite berore water ph6 ec 0.2 if ur water has a ec berfore adding nutes dont add any at this stage.sqezz the blocks a litel before u pop seed in so not to water log them.dont switch ur popergster on cause ur house dont need it ,put lid on close air fents. keep 400hps 32 inches away after 1-2 days u will see baby leavf remove lid straight away and drop light 18 inches .watch them grow,as soon as roots are comming out small block ,put in to big block pop on to u nft tank,and smile,always uder feed or water its easyer to add,put a pice of string on ur light and move up when needed that way u know ur are 18 inches safe zone. now once ur plants are in get some black refusse bags and just put them around the base of the plants and cover ur lid -top aswell this stops alge,its the white lids that do it ,when u bye a nft set up u must ask 4 a blak lid.