Hey mountainman,

I am glad that this is a great topic of interest, but i did look at the post following this, what i am looking for is a comparison of using co2 to using the chemicals. Did you try both or just with chems?

I ask because i am finding myself adding about 7-10 ml of 15% nitric acid by optimum every 2-3 hours. I use an aero system with 80 holes and about 60L i use the Advanced nutes high yield formula, with a few extras.