well it looks like you have the space saver 6 there, if i were you i would go get a pump and an airstone add it to the set up, i would also get the veggie pro aerogarden next, it has a bigger res and has much more valuable controls. also make sure you grab some cfl's for the sides of the plant...
for soil you want a ph of 7 and hydro 6 to 6.5 go look at the best grows on this site and see what there ph levels were!!!! i have done this for a long time these are the best numbers i have come across in my 18 years of growing!
i would feed nutes until your last week then give it water!!! you basically just have to flush out all the nutes. it doesn't usually take more then a week!