10/11/2025
🐟 Grey Triggerfish: The bold reef guardian!
(𝘉𝘢𝘭𝘪𝘴𝘵𝘦𝘴 𝘤𝘢𝘱𝘳𝘪𝘴𝘤𝘶𝘴 ; MT: Ħmar)
With its tough skin, oval shape, and determined gaze, the Grey Triggerfish is one of
the most fascinating residents of our Mediterranean waters.
🧬 What exactly is it?
The Grey Triggerfish is a marine fish from the Balistidae family. It has a laterally
compressed body, small but powerful mouth with sharp teeth, and a unique “trigger”
mechanism in its first dorsal fin. When threatened, it locks this fin into a rock or
crevice, making it almost impossible to pull out.
📏 Size & shape
Usually 20 cm, but can reach 60 cm. Strong, oval-shaped body covered in tough,
sandpaper-like skin. Colour ranges from grey to greenish, often with blue hues or
fine patterns.
🌊 Where can you find it?
Grey Triggerfish live near rocky bottoms, reefs, wrecks, or sandy areas close to
structure. Around Malta, Gozo, and Comino, they can be spotted between 10 and
100 m depth, often curious about divers but also ready to keep their distance.
🍽 What does it eat?
They are skilled hunters of hard-shelled prey, feeding on sea urchins, crustaceans,
molluscs, and even starfish. They blow jets of water into the sand to uncover hidden
food.
💡 Cool facts
Males build and guard nests during breeding season, becoming highly territorial.
Their “trigger” spine is so strong it can wedge them in place, safe from predators.
⚠ Look, don’t disturb!
While they can be curious, nesting males may defend their territory aggressively.
Observing from a respectful distance is the best way to enjoy their presence.
📸 Spotting a Grey Triggerfish on a dive is a treat, a glimpse of the strength and
character that thrives beneath the Mediterranean waves.
(The Cirkewwa Marine Park is managed by .trust.malta and supported by
)
Thanks to: Fishes And Other Marine Animals by Mark Anthony Falzon, Patrick J.
Schembri for the great information!