If you use a say 4' by 4' tray, and use ordinary garden pots and fill them with Hydroton (clay pellets), you will be able to move plants at your whim without any problems. Then all you need is a pump and run 1/4" hoses to them to feed. They don't even need a nozzle or anything, just let it run into each pot making sure there's lots of drainage holes for the nutes to escape. The plants love it.