Growers in hard water areas should use the special IONIC HW formulation. The Hard Water product has a distinctive HW label on the bottle. Both types of IONIC are available in Grow and Bloom formulations.
Plants in hydroponic systems are entirely dependent on the solution for nutrition. It has to be correctly formulated; it has to be stable, and it has to be consistent. Ionic nutrients are fully complex in the manufacturing process; key minerals are locked together in large molecules to ensure a precise delivery to the plant. As far as it is known, this is the only product in the world that is formulated and manufactured in this way, and to this supreme standard of precision.