or he had more than 3 plants..
and yes paying 500 bucks for a tent is crazy.
timmy, i would probably recommend soil first. the soil will act as a buffer, while in DWC, you mess up, and dont know how to fix it or fix it in time, you can lose your whole crop. id use 5 gallon buckets, with FFOF or Fox farms ocean forest lol. and you can use just that or amend it and mix some stuff in it. i like to use, 50% ffof, 40 % coco fiber, then an added 10% perlite. i also inoculate the soil, and add more earthworm castings and a little epsom salt. not much though. it worked great for me.
All that being said, if you still want to do DWC, then DO IT!!! haha. its your grow, and grow how you want to. it may just be a bit easier, until you get the feel for the plants and what they need to do soil, since a lot of your Micro nutes are already in it. also FFOF and the coco fiber are already PH'ed and you will only have to ph your feeding, and not have to regulate it as much, or keep it between 5.8-6.0