The Leopard Moray is about the same size as a large Green Moray, about 6 inches in diameter and several feet long. Usually moray stay in a hole or space in the reef during the day. At night they come out to feed. A disclaimer: "Leopard" moray is a common name which can vary from one location to another. See also Small Moray Close and Green Moray and Wrasse.
This image is best in 6 x 9 or 7 x 10 inches.