My advice is get yourself into the mindset that dosing Ca/Alk/Mg is not really all that bad. To a degree, all organisms make use of Ca/Alk so even a softeys tank with low demand still benefits from managing the parameters in one way or another. Even fish, I mean, usually, look at the health of the fish in a healthy managed reef and compare to that of an unmanaged FOWLR.
If the demand is low enough you can get away with managing parameters through water changes but ultimately this will become an expensive way to manage parameters. You will be better off (IMO) managing water changes and managing parameters (be it through dosing or reactors) independent of one another.
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-- Tony
My next hobby will be flooding my basement while repeatedly banging my head against a brick wall and tearing up $100 bills. Whee!
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