Cutting Edge Solutions Cal-Mag Amplified, 15 galDescription Cal Mag Amplified: An ideal choice for supplementing your native soil with fast absorbable forms of calcium and magnesium. This product is particularly beneficial for coco coir growers to provide additional calcium to buffer the coco and maximize cation exchange capacity. Beneficial for Heirlooms: Some plant species and heirlooms originating from equatorial regions require higher levels of magnesium. The extra source of magnesium in Cal