Palau – Flagfin Angelfish – $1 – 2009 – Prism Technology – Proof Crown – The Flagfin Angelfish (Apolemichthys trimaculatus) distinguishes itself by its intensive yellow body coloring and its eye-catching intense blue colored mouth. It lives mostly in pairs in the coral reefs of the Indo-Pacific Ocean and feeds on sponges and small crabs. Because of its attractive appearance this six to twelve inch fish is a very popular guest in aquariums around the world. Interestingly, the Flagfin Angelfish is capable of developing its sex after birth. Probably it possesses the ability to adapt itself to the number of the already existing fish of the same sex in its environment. Total mintage on this prooflike coin was limited to 2,500 pieces worldwide.