The hempy's are more 70p/30v.I only have removed larger fans and what ever may look like it was going to die and all small under growth that may be coming in.I just today cleared a few small bud sites very low and inside that were not going to amount to shit.I guess my attempt to make plant concentrate on the higher bigger buds.Well see.I will say I have never flushed them and have only used straight water twice.So I pretty much feed every day.I am concerned with them becoming root bound.I vegged for a little over a month so that may have been too much.So far I like hempy's and soil in there own way,but so far hempys are bigger.Well see what the buds like at the end.I think six 3 1/2 gal hempys in the closet next,but who knows.I'm sure I will change my mind. Jimmy6K