In DWC the roots live in the water and survive by the O2 that is pumped in by the airstones. If air supply stops eventually the plant will drown. Seperate containers for each plant is highly reccomended for the simple reason of if you ever needed to pull a plant you wont have to fight to untangle roots to get it out, also in seperate containers you dont have a bigger palnt "stealing" nutes from a smaller one. All plants get the same stuff. Google DWC and you will be amazed at what you will find. :thumbsup: