Barracuda
Scientific name Sphyraena qenie
Barracuda are sleek, powerful predators instantly recognisable by their long torpedo-shaped bodies, pointed heads and rows of sharp, fang-like teeth. Their silver bodies often reflect light dramatically, especially when schooling in open water.
Around Koh Tao, divers commonly encounter large swirling schools of Pickhandle Barracuda, particularly at deeper offshore pinnacles. These schools sometimes form dramatic tornado-like formations in current.
The Great Barracuda is usually seen alone — larger, more imposing and often hovering motionless in mid-water while observing its surroundings. Individuals can grow up to 1.5–2 metres long.
Barracuda rely on speed and surprise. They are capable of explosive bursts of acceleration when striking prey. Despite their fierce appearance, they are not aggressive toward divers.
Find Barracuda at...
Divemaster's tip
When you see barracuda schooling, slowly move to the edge of the formation rather than swimming directly into it.
Look for the reflective flash of their bodies in sunlight — sometimes they are easier to spot by shimmer than by shape.
If you encounter a solitary Great Barracuda, remain calm and avoid shiny dangling objects that could reflect light.
What do they eat?
Barracuda feed on smaller reef fish, squid and schooling baitfish.
They are visual hunters, often targeting the weakest or isolated individuals within a school, playing an important role in keeping fish populations healthy and balanced.
