hey guys any body ever grow solely in expanded clay pebbles im trying new things and i have fifteen 14 in. clones in a 2x4 tray filled to the lip with the rototon (NOW DONT GET ME WRONG I DO KNOW AND UNDERSTAND THE WEIGHT ISSUE) roots of all the plants have intertwined and are holding the pebbles quite tightly together also i have created a 4 legged stand that will be holding a web of string just about the tops of the plants i plan to guide the colas into the web as they flower im running 400 MH with an LED panel added as a test on one side of the tent one week into flowering already, vapor carbon air cleaner and total organic grow im just wondering if anyone has done this successfuly and if they have any tips for me im expecting the roots to hold the whole damn tray of balls together will be a nice mess at harvest time tho hehe