Salifert Iodine 500ml.
Corals require iodine as a de-toxifier, as a protection against uv-radiation and as a natural defense against many parasites. Iodine is present in NSW (Natural Sea Water) in a very low concentration (0.06 mg - L or 0.06 ppm). Iodine occurs in NSW as different species. These include iodide, iodate, molecular iodine and hypoiodite. Generally when we say iodine we mean one or more iodine species without a clear distinction being made. NSW contains predominantly iodate and to a lesser extent iodide. There is, however, a misconception among many hobbyists that iodide predominates in NSW. Research by Salifert and universities has proved this to be untrue. Scientific studies by Salifert have shown that it is predominately iodate which is used by algae (photo synthetic corals have a symbiotic relationship with zooxanthellae, which in fact are algae). Another advantage of using these salts is that no ionic imbalance is created unlike when potassium or sodium salts are used. Salifert stands alone in offering such an advanced, reliable and well-thought formulation.