...always to be high I mean 1600 consistently is it all because of my SG.
The only thing I can think of that I am not testing is PH and I don't think there's a problem with that.
I need to do something because I just can't keep up testing over and over again and not sure what to do next.
I have always run my tanks at between 1500-1600 Mg (Alk 7.8-8 and Ca at 420-440) and never noticed any negative effects. And I don't dose Mg, it just naturally stays at that level.
I wouldn't sweat a level of 1600... ;Happy However I would want to correct things if the level was too low.