Red Sea Trace- Colors Pro - Multi Kit (I2, K, Fe)It?? s all in the balance Red Sea?? s TRACE COLORS PRO Multi Test Kit?includes advanced tests for the high accuracy measurement of Iodine, Potassium and Iron. ? All of these elements are associated with many biological functions, including coral pigmentation. ? The?TRACE COLORS PRO Multi?Test Kit?enables accurate dosing of three of the?TRACE COLORS?Supplements range, which are part of the compete Red Sea Reef Care Program. Kit includes: ?? I2 reagent