Reeflowers Pure Magnesium 5.5L

ReeFlowers Pure Magnesium contains high purity magnesium. Magnesium is needed for the growth of coral skeletons, oyster shells, and other similar skeletal organisms. It contains a minimum of 250,000 ppm of magnesium per kilogram.
?Increases the rate of coral growth
?Required in the formation of coral skeletons
?Extra pure