Hi guys, I'm using dutch pro A & B (5-2-7 NPK Got the values from dutch pro) I'm getting a LOT of issues with it, would changing Canna A & B harm them?
They are about 6 weeks into veg, all GH TrainWreck, I'm using a 600w hps with a cooltube on and a 400w hps which went on saturday, 6" outlet...