There are multiple ways to root or clone tomato suckers. For hydroponics, it needs to be done without soil. One of the easiest ways is with the use of growplugs. They hold a good amount of moisture, while still providing proper aeration. A couple of things to remember, keep them out of direct sunlight during the rooting process. And make sure you have some type of cover over them to maintain good humidity levels. Doing so will greatly increase your chances of success. Sleestaks rooting video.. http://www.youtube.com/watch?v=tsFO-RwVz7k Good article explaining suckers... http://easygrowsit.com/how-to-save-time-and-money-when-starting-tomato-plants-for-your-garden/ http://www.facebook.com/mhp.gardener