Then you are dosing about the same amount of Ca as I am. Have you ever tested for Fe/I2/K? BRS states that you should use 1 mL of CC per 50 mL of their 2-part dosed so I still think you're dosing a bit heavy. According to that, you should be dosing closer to 1-1.5 mL / day. Some of those trace elements can be toxic at elevated levels so just be cautious.I'm not sure on saturation. I use brs calcium mix. Which is like 2 1/2 cups of mix for a gallon