Salifert Profi Test Kits for reef, marine and advanced freshwater aquarists are some of the most precise and accurate test kits on the market. Kits are available for all aspects of the aquarium's chemistry, covering organic and inorganic pollutants as well as valuable marine trace elements to allow for accurate dosing when additives are required.
Iodine is present in natural seawater in a very low concentration (0.6 mg/L or 0.06 ppm).
this iodine occurs as several different species including iodide, iodate, molecular iodine and hypoiodite.
There is a misconception among many hobbyists that iodide predominates in natural seawater but in fact, it is iodate which is the predominant element.
Test kits, which are not capable of detecting iodate, are not suitable for aquarium use, since in a properly functioning tank most of the iodide will be transferred to iodate and any test kits not able to detect iodate will give a false, low iodine reading.
