What chemicals do you put in when you do a water change? We've just changed our water and are told to add 1 bottle Eliminate 1, 4oz Eliminate #2, 7oz Purezyme #3, 1/3 cup Lithchlor and 2oz Pure Blue. Then we can start with ph minus to lower the TA, and add Protect to increase calcium. Then they suggest another water test to make sure it's balanced and then to add SOFT. Does everyone add all this stuff with every water change? It seems a bit much to me.