Ditto ditto ditto. Most of our fish have been aquarium bred and it doesn't make much difference.
I've haven't used these additives in years and the health, color, breeding, longevity etc. of the fish have not been effected. Because of this experience I'm convinced that in most cases, unless your tap water is unusually soft, these additives are more useful as an idea then in application. Now I just use baking soda if my kh is too low, to buffer the PH, and that's it.