Seachem Grey coast Substrate(magnesian calcite)

This is the stuff i am going to use in my sump.I guess it is rated better that aragonite sands.Has anyone here used it.

      Taken From SeaChem WebPage
How do calcite and aragonite compare?
While calcite and aragonite share the exact same chemical composition, aragonite has always been favored for marine aquaria because of its higher buffer capacity. However, magnesian calcite, such as our Gray Coast™, has been shown to have a higher buffer capacity than even aragonite, making it an ideal choice for marine aquaria.

Elemental Concentrations in Gray Coast™
Calcium 197,500
Cobalt 4
Iron 2876
Potassium 417
Magnesium 115400
Manganese 43
Molybdenum 6
Strontium 63
Vanadium 7
Zinc 23

Units=ppm, source: Plasma Emission Spectrometer, EPA Method 3050, Univ. of Georgia Chemical Analysis Lab
Elemental Concentrations in Pearl Beach™ units=ppm

ARAGONITE SAND

Calcium 346750
Cobalt -2.6
Iron 33.3
Potassium -306.3
Magnesium 2138
Manganese 2.3
Molybdenum -1.65
Strontium 8210
Vanadium 7.95
Zinc 2.85

 

Re: Seachem Grey coast Substrate(magnesian calcite

This is intresting. I will read more on it.

J

 

Re: Seachem Grey coast Substrate(magnesian calcite

looks like no one has really used it