I usually add about 2 cups of 9:1 Mg salts to +20gal of water change water then slowly use it up over 2 weeks. I've only added 1 tbls of baking soda to my tank in the last two years. The last time I needed calcium chloride was probably 3 years ago. The rest is handled quite adequately and hassle free by a kalkwasser and a calcium reactor. 240gal system. Sorry for the hijack.
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