Reef Colors Pro is a new reef test kit from Red Sea which aims to encourage the proper dosage and testing of color-enhancing seawater trace elements. It is known that Iodine, Potassium and Iron have a strong effect on fluorescent and chromatic pigments of photosynthetic reef corals, particularly the fast growing, small polyp stony corals. It is fairly easy to add I2, K and Fe supplements to a reef aquarium but there is a narrow range of concentrations where these elements have the most effect on SPS coral colors; a lower level and the colors are not as pronounced and at higher levels these elements can have undesirable consequences whether it is coral irritation from excess iodine or unwanted algae growth from high levels of Iron. Although we have long been vocal critics of Red Sea’s old test kit line, Reef Colors Pro is made with a much higher level of performance in mind; 60 Iodine tests use colorimetry to resolve levels between 0.0-0.09 ppm with an accuracy of 0.03ppm, 40 titration tests for Potassium measure levels between 150-450ppm +/- 12ppm amd 45 colorimetric Iron tests resolve Fe between 0.0-0.9ppm with an accuracy of 0.05ppm. We don’t expect this kit to be unreasonably expensive and it should be hitting your local Red Sea dealer sometime this summer.