Also known as Black Sweetlip, Blubberlip Bream, Brown Blubberlip, Brown Sweetlip, Dusky Sweetlip, Gibbus Sweetlip, Gibbus Thicklip, Harry Hotlip, Harry Sweetlip, Humpback Sweetlip, Rubberlip Bream, Sweetlips.
Found singly or in small schools during the day, close to caves and ledges, out hunting for food at night over protected inshore reefs and deep offshore reefs rich in coral growth.
They feed on benthic crustaceans, fish and invertebrates.
Juveniles found singly mimicking a dead leaf by drifting on their sides along sheltered sandy shorelines.
Length - 75cm
Depth - 5-25m
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/6366