the Tropical Coral Fish 3 coin series featuring the Royal Blue Tang, Royal Gramma and Guineafowl Pufferfish. The Blue Royal Blue Tang can be found throughout the reefs of the Indo-Pacific Ocean and is one of the most common and popular Marine fish throughout the world. This 28.28gm silver coin features a full colour image of a Royal Blue Tang with reef coral engraving. This beautiful coin is presented in a custom mold box reminiscent of an aquarium that features a liquid filled lid with air bubble