LoudBlunts, i tryed the 24h route thro reading of others and just for the hell of it to keep a way for good aereation.... and it worked....been thinking of trying it on a timer..... i also showed the stuff i use for the mix, not fertz, an enzime producer and anti bacterial product wich promotes root growth, Growzyme, and at a way weak solution... learned that the hard way..... i have never had the rez water get hotter, but i will remember that..... as for the root time, i generally have like 2" to 6" roots everware at the end of day 7, so i'll just continue this tread that way and might just start a new one with the timer on the pump to compair! ah ha.... idea......