Welcome to Coral Essentials! Born in Cairns, Australia, Coral Essentials is a supplement to make coral breeding more enjoyable with the concept of simply filling just what you really need and enhancing the ornamental value in the process of growing corals. Thanks to your understanding and cooperation, it is now available in Japan. Thank you! Coral Power TraceC (Coral Power TraceC C) Supplement is a blend of potassium iodide and other elements that are important to maintain growth speed and color. It has a good balance of trace elements of iodine and fluorine system. These trace elements are consumed by corals in the aquarium, so regular additions are required to maintain growth and color. How to use and additive: 1 drop (0.05 ml) per 3.5 fl oz (100 L) per day is a standard additive. (Note) Measure your breeding water regularly with a tester, etc., and make sure to adjust the optimal amount of dosing for each aquarium.