Fin's Fish Guide
The Black and white striped soapfish (Grammistes sexlineatus) is a saltwater fish of the family Serranidae that grows up to 30 cm.
Description
The sixline soapfish is a small grouper-relative of the family Serranidae from the Indo-Pacific. The species grows to about 30 cm and has a dark-brown body with pale longitudinal stripes; juveniles have a few stripes, older fish more. It inhabits coastal waters over coral and rock and shelters by day under ledges and in small caves. As a predator it hunts small fishes and crustaceans. Characteristic is its skin, which when disturbed secretes a bitter, soap-like toxin (grammistin) that deters predators; for this reason the species is not eaten. When handled it is harmless to humans.
Frequently asked questions
How do you recognise the Black and white striped soapfish?
The Black and white striped soapfish has a torpedo-shaped body, is mainly brown and shows a horizontal stripes pattern. When disturbed it secretes a bitter, soapy toxin (grammistine); this makes it inedible. Note: in tropical areas this species can cause ciguatera poisoning when eaten; large specimens of coral reef predators can accumulate the toxin. Eat with caution or avoid in risk areas.
Where does the Black and white striped soapfish live?
The Black and white striped soapfish lives in the sea (marine waters) and is mostly found around stony or rocky ground. Indo-Pacific; coastal waters over coral and rock.
How big does the Black and white striped soapfish get?
The Black and white striped soapfish grows to a maximum of about 30 cm.
Is the Black and white striped soapfish dangerous to humans?
The Black and white striped soapfish is venomous — handle spines with care and seek medical help after a sting if needed. None required: this species is harmless to humans.
Is the Black and white striped soapfish edible?
The Black and white striped soapfish is not usually eaten.
More photos
Want the complete picture on the Black and white striped soapfish?
Point your camera at the fish and Fin names the species in seconds. Free, and the Black and white striped soapfish is one of 12,519 species in the app.
All data
Identification
Appearance
Habitat & distribution
Behaviour & biology
For anglers
Safety
Status & sources
More from the family Serranidae
Want the complete picture on the Black and white striped soapfish?
Point your camera at the fish and Fin names the species in seconds. Free, and the Black and white striped soapfish is one of 12,519 species in the app.