effects on DKH and Ca when raising Mg

what will happen to my dkh and ca if i raise my mg? current params for ca is 460 dkh is 13 and mg is 1140.

i would like to raise my mg up a good bit and also bring down dkh some also, so will bringing mag up accomplish this? what other things can i look for when raising mg to be affected?

 

Chemistry And The Aquarium: Solving Calcium And Alkalinity Problems — Advanced Aquarist's Online Magazine

 

Thanks for the good read but, it did not answer the question. It gives good information on balancing Ca and Kh but, doesn't involve Mg. I'm looking to raise Mg, lower KH and wondering what the effects will be.

 

basically i need to lower alk and raise mag and need to know how and when i do what other levels will be affected.