Kent Tech M Magnesium - please check my math

[Madreefer]

The only thing that I know of that the Kent Mg works on is bryopsis. I used it for that and it worked good but required a huge amount. To maintain my Mg I use a mixture of Epsom salts and Absolute Zero driveway ice melting salt. It's a really cheap way to go about it. And the reef calculator is usually bang on with it's calculations so I don't know why you don't like using it