Growing marijuana hydroponically indoors has become the preferred method to cultivate cannabis. Growing marijuana hydroponically is not as hard as it looks, but it does require you to know what you are doing. That is why a guide, like The Hydroponic Bible, is of vital importance Whether you a novice cultivator or an experienced cultivator with a Phd in Hydroponic Marijuana you should read this book. This book, to the cultivator, is the equivalent of the periodic table to the chemist.