So I guess I have over ferted my plants in soiless mix under 1000hps grow area 5'x5' exit fan 270 cfm in flower 3 weeks with some hydro fert 0-56-30.I have yellowing of the leaves and dying ,burned tips on leaves all new growth is green even bottom small bud yellowed and withered away.I have applied fish emulsion to up the N but should I also flush out the excess P and K .Thanks for the help.Showgirl