Giant Jawfish, Opistognathidae rhomaleus, are native to warmer parts of the Atlantic, Pacific and Indian Oceans, found from the shallows to depths of a few hundred meters. Giant Jawfish typically reside in burrows they construct in sandy substrate. They will stuff their mouths with sand and spit it out elsewhere, slowly creating a tunnel. Using the protection of these burrows, these fish will hover, feeding on plankton or other small organisms, ready to dart back in at the first sign of danger. They are territorial of the area around their burrows.