I got this little article from Animal World.....
The Golden-headed Sleeper Goby, Blueband Goby, or Pennant Glider are moderately difficult to keep, considered good for a more experienced aquarist with a larger system, where they can find plenty to eat.
Like other members of the Valenciennea species, they feed by taking up mouthfuls of sand and pass it through their gill covers to extract small crustaceans, worms and algae. It is important that they have a sufficient amount of "live" sand for them to sift through.
Maintenance/Foods:
A typical goby, they eat small crustaceans and other small marine organisms. Live brine and a high protein krill are ideal for the aquarium.