Hi guyz, i just started hydro in a ebb & flow system with rockwool in 6L pot., and have a few question about it....i try to keep everything simple, my feed is base(AB) + silicate + very little epsom in end of veg + stretch, i never change rez untill i have to, that why i avoid every additives as they make my solution go bad....i learned this when growing in coco dtw, but here in a recirculate system it's even worse. Actually i flow 2 times a day and 1time at night, but as soon as flower... Few question, mainly about ebb & flow with rockwool from Hydroponics / Aeroponics Learn more about hydroponics Visit potads uk classifieds for 1000's of 420 adverts