I'm usin' SeaChem Mg to raise Mg. So far, so good. Added 1200g yesterday and the Mg is at 1110 ppm today. Added another 1200g today so it should be around 1215 ppm tomorrow. Once it's up to 1290 ppm, I'll do the Turbo Ca thing.
Once the Ca is up to 400 ppm I plan to maintain Ca with SeaChem's Reef Advantage Calcium. One advantage to this product, I'm told (and it also says so right on the package), is that it also maintains Mg and Sr. The guaranteed analysis says it contains 17 mg of Mg per 1g; and 0.34 mg of Sr per 1g.
Cheers
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