well, This was my first DWC. I had that plant germed in a coffee can bubble bucket, in a 2" net pot. 2" is way to small. the damn thing was always ready to fall over. id go with at a min a 3" pot, probably a 4" would be better. I used a rockwool plug with hydroton rocks. there was only 1 6" sandstone airstone, hooked to a double outlet air pump.
other than that, i used Xnutrients for the whole vegg, and half the flower period (till i ran out in week 5). I changed the res usually once a week, i may have let it go 2 weeks once or twice. tried like hell to keep PH around 5.8-6.2, but it would do whatever it wanted the last few weeks (when I started using Dyna-gro, I just need to figure out how to use the stuff in DC i think.)
other than that, i dont think I did anything special, I did use some Hydro-Rush also in the res (it was a sample bottle so I tried it out, still have some left also)
im trying to get some BC purps ready for a side by side DWC grow. but just tossed em in the cloner the other day. This time im gonna use DG, X-nuts, and if I get my hands on some AN Sensi A+B ill use that also (a nod to PhillipC). Iv done purps several times, so im very familiar with the strain. I should be able to notice any differences in growth rate, flavor, etc....