Black brown liquid, water soluble PH=6-8, specific gravity: 1.15-1.20 seaweed extract 40%,organic matter 5% , N,P2O5,K2O ... Plus Product characterBlack brown liquid, water soluble, PH=6-8, specific gravity: 1.15-1.20 Main Ingredients seaweed extract≥ 40%,organic ... or to buyer’s option. Seaweed extract Fertilizer Liquid Plus npk