and if you wanted to grow Hydro, simply replace the soil with straight perlite(even the self watering units are good but ice cream containers are just as good) and feed them hydro nutes, a great yield with no Rez heat/cooling issues.
I have no pics of that style of growing, but beleive me, it works if you have the time to spend a few minute every day giving them a water, the self watering units are ideal if you want to fuck off and leave it for a few days