Diamond Watchman Goby

Snapshot: Also known as the Orange-dashed Goby, Diamond Watchman Goby or the Orange Spotted Diamond (amongst other names). Its elongated body is citrine yellow with fiery orange accents. It blends effortlessly into sandy surroundings, thanks to its semi-translucent body. 
 
Other tidbits: Can grow up to 15cm or so. Range extends around the Indo-Pacific region, from the Red Sea to the Maldives, the Philippines, and slices of Australia.
The Diamond Watchman Goby scavenges the sandy depths, sifting through for its next meal.
 
Bare bones must know: Fish-only system or reef aquarium. Sandy substrate for burrowing.