so fill the net baskets with the 1 inch lava rocks??? im going to be using a 6 in pvc with hole cut into it. so the net baskets wont be that big... or should i use bigger pipes to start. my cusin uses fence post for his. but he grows tinny midgets. im not looking to grow trees but i normaly have mine bonzied to be pretty busshy wide. i think you guys call it sorg or some thing like that. have you seen the sure to grow things??? bad idea???