Hi, first of all I would like to say hi to everyone as a new forum member, great forum I've followed for a while but only just become a member so hey all. Secondly to to question in hand, here goes I have 24 plants with poor root growth to previous ones. 24 plants half way through week 4 12/12 iws flood & drain 5 floods 40 mins each flood 5x 600w hps sms fan controller @ 23 8" out 6" ec 1.8 full strength as feed chart says from local grow shop ph 6.0 aqua pots 4" rockwool canna aqua a-b flores canadian express wilt gaurd canadian express regan a root rizatonic hygrozyme canna boost accelarater budda's tree pk9/18 everything looks fine to be honest, but the root growth isn't the same as previous times, there's healthy white roots, quite a lot dangling but there not matted to the shape of the outer pot like previous times, so could any thing be better maybe?? I was thinking maybe the medium is staying a little to wet? And should I reduce the flood time or take a feed off maybe?? Any help greatly appreciated.