Also known as Australian Slatey, Blacktail, Bluey, Grey Sweetlips, Moke, Morwong, Mother-in-law Fish, Painted Blubberlips, Painted Sweetlips, Painted Thicklip, Painted Thick-lipped Grunt, Sailfin Rubberlip, Slate Bream, Slatey Bream, Slate Sweetlips, Slatey Sweetlip, Slatey Sweetlips, Smokey Bream, Sweetlips, Thicklip Bream, Thicklips, Trout Sweetlips, Yellowdot Sweetlips.
Found singly or in schools often in murky waters close to debris, rocky outcrops and wrecks during the day, out hunting for food at night over open waters of bays, estuaries and coastal coral reefs.
They feed on fish and benthic invertebrates.
Length - 95cm
Depth - 1-170m
Widespread Indo-West Pacific
In some areas of the world 'Grunts' are better known as 'Sweetlips' distinguished from other species by their very large rubbery lips.
'Grunts'because they "grunt," the grunting sound is produced by their flat teeth plates rubbing together and this is amplified by their air bladders.
Found either singly or in schools hovering or motionless over the reef during the day, becoming nocturnal predators. Ref: https://www.fishbase.se/summary/4465