I have been using a hydrolized fish product for my N source for several years. I've been researching other souces that mix the fish with chilean nitrate, or nitrate of soda and still maintaining an OMRI label. The added nitrate has an analysis of 17-0-0. I would like to know If any of you kind folks have had expierence with chilean nitrate? I received a sample today and it is 100% soluble looks like good stuff but 20% sodium.