Magnesium in ReefersBest salt?

[RuGlu6]

Originally Posted by pterfloth

I have been doing 10% weekly water changes with RBS the past 3 weeks and my Mg has only changed from 1470 ppm to 1432 ppm. I am using the same test procedure I use for work and I know it is quite accurate. The Salifert test gives similar readings.

What procedure are you using?

If you mean water change procedure i am changing 5% of water weekly.
For testing LFS used Elos test kit, it was 25 drops in first step,5 or 6 drops in second step. 25-5x50=1000. or 25-6x50=950 ppm Mg.

i wonder what test are you using. And did you test your fresh made salt water of RBS if yes what are the readings for Mg.?
thank you.
May be if your test is more accurate, then my water is fine as well?
If you are on RBS for only 3 weeks and RBS has lower Mg levels then may be that is why your levels slowly dropping?