I understand everyone saying about bringing my tank kh to 8 by adding baking soda to it, but wont my method work as well? My method... my tank is at 5 right now if i bring my water change water to 8 it should slowly raise my kh in my main tank to 8 over a series of water changes. Once my tank hits 8 it will stay there since every water change will be with water of a kh of 8.