Just tested my magnesium this morning and it was at 1200. Should I doese magnesium? I have the brs magnesium mix but have not used it. Just trying to see if this is even worth doing. I've done some research and found that not many people dose magnesium.
Mg is part of what helps Ca to stay stable.
Many Mg depleted systems will not hold proper Ca.
If you keep corals(can't imagine why you tested mg if you didn't) I would dose the mg and then test your ca...
I don't use the BRS stuff so have no advice on it.