Designed for hydroponic crops, it can be added to tank A or B for preparation of the concentrated solution. 100% soluble in water. Low turbidity level. Ideal for hydroponic crops. Totally soluble for use with all irrigation and sprinkler systems. Chloride and sodium free product, "This product falls into the category of plant nutrients and is not classified as toxic according to NMX-R-019-SCIFI-2011. Read carefully the safety data sheet before using this product".