Salifert Iodide Test Kit The Salifert Iodide Test Kit is a marine aquarium test kit for measuring naturally occurring iodine compounds and monitoring total iodine concentration in reef systems. Iodine Testing for Reef Trace Element Control Iodine can be rapidly depleted or transformed in reef aquariums through biological uptake, oxidation and filtration. This Salifert kit is designed to measure naturally occurring iodine compounds and provide a total iodine reading, helping hobbyists avoid blind trace element dosing. Salifert Iodide Test Kit Features Measures naturally occurring iodine compounds. Provides a total iodine concentration reading. Designed for marine and reef aquarium use. Free from interference from many other elements commonly found in saltwater. Colour remains stable for several hours after testing. Useful when dosing iodine or monitoring trace element levels in reef aquariums. Helps support more controlled supplementation for soft corals and invertebrate systems. Iodine Dosing Notes Iodine should not be dosed blindly. Test before and during supplementation, and make changes gradually because trace element overdose can stress sensitive reef livestock. Directions Follow the current instructions included with the kit and use clean testing tools to avoid contamination. Read the colour result under consistent lighting and compare it carefully to the supplied reference scale. Use results to guide cautious iodine supplementation rather than making large corrections at once.