Ionization uses a safe low-voltage method to harness the natural molecular properties of copper. Because soluble copper ions lack two electrons, they are “eager” to bond with other suitable atoms that can supply the missing electrons. When copper ions encounter organic matter they firmly attach themselves and disrupt the pathogens’ cell walls, killing the organisms. The control unit for the ionization system provides a low quantity, precise dosing of copper ions. Calculating and adding the proper level of copper sulfate is less accurate allowing a greater chance of overdosing, which may be toxic to the fish. Copper sulfate once it disassociates in water will fall and remain on the bottom of your pond.