Cutting Edge Solutions Cal-Mag Amplified, 1 galCal Mag Amplified is an ideal choice for supplementing your native soil with pure, rapidly absorbable forms of calcium and magnesium. Coco coir growers will greatly benefit from the use of Cal Mag Amplified by providing additional calcium to buffer the coco and maximize cation exchange capacity. Higher levels of magnesium are necessary for some plant varieties and heirlooms that originate from equatorial regions. The additional source of magnesium in