puff-puff, there is a thread on here called "subcools super soil " i think...its a long ass thread started about 2 years ago and is still active.i think you should READ the entire thread as there is a ton of info on organic growing and this guy has a soil recipe that only requires water, no nutes except a soil top off several weeks into flowering. the only kick back is the soils gotta cook for at least 6 weeks. mines been cooking for just a couple of weeks, but like i said...the thread was started 2 years ago, and his recipe has been tested by a number of riu members and gave pos. results. i think you will find subcool to be a very good source of info and the dude has the patience of job so he will nicely answer your questions if you need help. hope this helps as you said you want to grow organic...g.l.