Moustache Jawfish, Opistognathus lonchurus, are found in the deeper waters of Florida. They are a beautiful dusk grey color that fades into a subtle steely blue. Brilliant blue highlights their mouth, lines their fins, and stripes their body. They are truly an exceptional jawfish. Like with other jawfish, they need a deep sand or rubble because they make holes in the sand. Additionally, structures in the aquarium should be stable, because jawfish can move sand under them. This prevents possible injuries to the jawfish and other fish or invertebrates in the aquarium. Moustache jawfish are easy keepers, eating pellet, frozen, or live food. They are excellent aquarium fish.