Triggerfishes

Titan triggerfish (Balistoides viridescens)

The Titan triggerfish (Balistoides viridescens) belongs to the family Balistidae (triggerfishes) and is found in the Red Sea, with a wider Indo-Pacific range. It reaches about 75 cm and is found at 1–50 m depth. IUCN conservation status: Least Concern. Treat it with caution (danger): do not touch or handle it.

Titan triggerfish (Balistoides viridescens), a Red Sea fish of the triggerfishes family
Photo: iNaturalist / Wikimedia Commons

Quick facts

Scientific nameBalistoides viridescens
AuthorityBloch & Schneider, 1801
FamilyTriggerfishes (Balistidae)
Common name (IT)Pesce balestra titano
Common name (EN)Titan triggerfish
Maximum size75 cm
Depth1–50 m
DistributionRed Sea and Indo-Pacific
IUCN statusLC — Least Concern
HazardDanger

Description

Present throughout the Red Sea, with a broader range across the tropical Indo-Pacific.

Diving hazard — Danger: keep your distance, and never touch, corner or feed it.

Where it lives

Present throughout the Red Sea, with a broader range across the tropical Indo-Pacific.

  • Red Sea
  • Indian Ocean
  • Western Pacific

Diving safety

Danger. This ray carries a serrated tail spine. Injuries occur when it is stepped on or cornered on the bottom — shuffle your feet and give it room.

If it happens

  • Leave the water and control bleeding with direct pressure.
  • Immerse the wound in hot water (about 45 °C) for 30–90 minutes.
  • Watch for signs of shock; call for help if they appear.

After

  • Seek medical care: the wound often retains spine fragments and infects easily. Tetanus cover if needed.

Frequently asked questions

What family does the Titan triggerfish belong to?
The Titan triggerfish (Balistoides viridescens) belongs to the family Balistidae (triggerfishes).
Is the Titan triggerfish dangerous?
It needs caution: Danger. Keep your distance and do not touch or handle it.
Is the Titan triggerfish endemic to the Red Sea?
No — it occurs in the Red Sea but its range extends across the Indo-Pacific.
How big does the Titan triggerfish get?
It reaches a maximum length of about 75 cm.

Explore the Titan triggerfish in 3D in the interactive atlas →