Dolomite in Ca Reactor?

[Aquattro]

I used it once, did nothing. I think you'd need a whole lot of it, based on amounts you have to add of other Mg products.

[whatcaneyedo]

I use a Ca Reactor but have never bothered with that sort of media. It only takes about 1 cup of Mg salts dissolved into my water change water once a month to keep mine up around 1400ppm.

[Ryanerickson]

I have a separate chamber for it and yes it bumped it up to to 1800 by accident