Also known as Giant Thicklip, Stripe Sweetlips, Striped Yellow Sweetlips, Sweetlips, Twostripe Sweetlips, Two-striped Sweetlips, Yellow-lined Sweetlips.
Found singly or in pairs during the day around bommies in deep reefs dispersing at night out hunting for food over clear lagoons and seaward reefs.
They feed on fish and benthic invertebrates.
Juveniles in brackish, murky waters of coastal shorelines.
Length - 100cm
Depth - 2-50m
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. (edit) Ref: https://www.fishbase.se/summary/6362