Titan Triggerfish (Balistoides viridescens) - Marine Life - Liveaboard Diving

Titan Triggerfish

The Titan Triggerfish is quite an infamous fish, due to its behaviour around scuba divers. It's the largest of the Triggerfish species, and certainly the most aggressive. They fiercely guard their nests and will swim at and attack anything or anyone that comes with the conical-shaped zone directly above each nest. In general (when not nesting) this are interesting and colourful fish to meet on the reef, posing not harm or risk to divers. 


Titan Triggerfish (Balistoides viridescens)
A Titan Triggerfish (Balistoides viridescens) looking for food.
Credit: Alexander Kiermayer
Titan Triggerfish Balistoides viridescens
Scientific Rank
Chordata (Chordates)
Order: Tetraodontiformes (Pufferfish, Triggerfish, & Filefish)
Family: Tetraodontidae (Tetraodontidae)
Genus: Balistoides (Balistoides)
Species: Balistoides viridescens
Average Size: 70 centimetres

Have you ever seen Titan Triggerfish when diving?
Let us know your thoughts by adding a comment below.

Free Scuba Diver!
T-shirt & wrist band
+ Drybag or Beach towel

We use cookies on our website. Some of them are essential for the operation of the site, while others help us to improve this site and the user experience (tracking cookies). You can decide for yourself whether you want to allow cookies or not. Please note that if you reject them, you may not be able to use all the functionalities of the site.