I have a 2by2 m square hydro tent with 400 wot light sontiargo an 6plants ak an trainwreck from greenhouse seeds wen flowerin da buds keep on towering but not forming hard il post pics soon my ph us at 6 an i'm not Letin ec cf drop below twenty sumtimes it's at 3.0 afta I change water an stil no tip burn do day need more nitrogen