Hi all, I was informed about using C02 bag/tank for my plants growth... After some searching on the interwebs, I found a few articles about using carbonated water once a week in place of the C02 bag/tank. In the articles it talks about Carbonated water containing macronutrients, including carbon, oxygen, hydrogen, phosphorous, potassium, sulfur, and sodium.... which from what I also read basic C02 doesn't contain any of those. I was wondering if anyone had tried this and if yes what were your results. I figure if no one has tried it.... Then the cost of a small case of Perrier for my plants would be worth the experiment. Thought opinions comments?