Corals benefit from iodine as it serves a multipurpose supplement. It works as a de-toxifier, protects against UV radiation and it’s a natural guard against parasites. It’s naturally found in sea water in a very low dose (0.06ppm)
Salifert’s Natural Iodine supplement contains a large amount of iodate and also some iodide in similar proportions as NSW (Natural Sea Water). This will simulate the most authentic conditions which in turn will benefit corals and other organisms.