Aeroponics is a Hydro system Mello mood....It's just a different delivery method from 24/7 drip system (I use) and different then dwc, ebb & flo tables and all the others. ebb & flow are a pain in the ass (only because I hate rock wool, the crap it is) ebb & flow with grow rocks is not bad but rockwool sucks. I hate drifting Ph levels in my grow medium I like to work but not that hard.