Reef Teach Great Barrier Reef learn about the Great Barrier Reef

	Moorish Idol

	The Moorish Idol (Gill, in the movie, Finding Nemo) is commonly sighted on the Great Barrier Reef and is found on every reef system in the Indo-Pacific. It has been around for over 50 million years. Though it will not change colour in front of your eyes, it is black and grey at night.