2011 50c Australian Sea Life II The Reef Starfish 1/2oz Silver Coloured Proof Coin

The Australian Reef Starfish is a vibrant marine invertebrate found on coral reefs. With five or more arms and striking colorus, it plays a vital role in reef health. Some species, like the Crown-of-Thorns Starfish, can harm coral if populations surge, while others help maintain ecological balance by feeding on algae.