Phytoplankton + Cal-Mag Organic Soil Enhancer / Fertilizer / Plant food

MARPHYL Cal-Mag Organic Soil Enhancer is a liquid marine phytoplankton fertilizer formulated to address calcium and magnesium deficiencies in soil. Wild-harvested from the pristine Pacific Ocean waters of Vancouver Island, BC, Canada, it is made from up to 80 species of marine phytoplankton. Ideal for tomatoes, peppers, cucumbers, and other plants prone to blossom end rot or interveinal chlorosis caused by Cal-Mag deficiency. Pesticide-free, fungicide-free, non-toxic, and runoff-safe. Licensed by the Canadian Food Inspection Agency. Certified organic. Dilute 1:20 with water and apply every 2 weeks. Sold on MARPHYL Marine Phytoplankton (https://sendopeners.com/products/phytoplankton-cal-mag-organic-soil-enhancer-fertilizer-plant-food). The price shown is the retail price on that storefront on 2026-10-22, not a GreenB2B quote or a wholesale price.