This is a fortified version of iconic Marine Phytoplankton Soil Enhancer, now enriched with essential Calcium (Ca) and Magnesium (Mg) to target two of the most common nutrient deficiencies in plants.
 
While the original MARPHYL Soil Enhancer already provides a full spectrum of micronutrients from up to 80 species of wild marine phytoplankton, Phytoplankton +Cal-Mag adds significant levels of Calcium (0.236%) and Magnesium (0.149%) for targeted benefits and improved performance.