Bah, there hasn't a single brand of salt I've tried that didn't need something added. Find a cheap source of bulk chems and adjust to needed it will be cheaper in he bigger picture.
I think 100 per day is a good target, or 50.
Thing is once it's up there it's up there. Adjust your w/c water so it's not dropping Mg at w/c time and you'll only have to dose for marginal bumps of Mg thereafter.
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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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