I guess I am going against the grain, but I add a little baking powder with every water change to help buffer the water on the alkaline side. I have been doing this for over 10 years with no ill effects.
I also add a little bit of epson salts and non-iodized salt to bring up the hardness. For awhile, I was using calcium carbonate as well.
I also add a little bit of epson salts and non-iodized salt to bring up the hardness. For awhile, I was using calcium carbonate as well.