Titan Triggerfish (Balistoides viridescens) – XXL Size 6″ to 7″
Juveniles of Yellow Margin Triggerfish closely resemble Titan Triggerfish, but key differences exist. Titan Triggerfish display distinctive black spots or shading around the eyes, while Yellow Margin Triggerfish have clear eye areas. We identify specimens with 90% certainty based on visible markings. For absolute confidence in species identification, consider a WYSIWYG (What You See Is What You Get) specimen, allowing you to verify the fish meets your exact requirements before purchase.
Reef Compatible: No
Care Level: Intermediate
Disposition: Aggressive
Min. Tank Size: 250 gallons
Mature Size: 30 inches
| Specimen Details |
|---|
| Size: 6″ to 7″ (XXL) |
| Species: Balistoides viridescens |
| Identification Accuracy: 90% based on eye markings |
FAQ
What are the key differences between Titan Triggerfish and Yellow Margin Triggerfish?
Titan Triggerfish have black spots or shading around the eyes, while Yellow Margin Triggerfish have clear eye areas. Identification is accurate to 90% based on visible markings.
Is this fish suitable for a reef tank?
No, this fish is not reef compatible due to its aggressive behavior and potential to damage coral.
What is the minimum tank size required for this fish?
A minimum tank size of 250 gallons is required to properly accommodate this species.

Evan Jackson –
Received the Titan Triggerfish in good condition. The black eye markings are clearly visible and match the description. It’s aggressive, as expected, and requires a large tank. We’ve maintained a 250-gallon system and it’s been stable so far. A good choice for experienced aquarists with proper space.
Samantha Ince –
The fish arrived healthy and shows strong coloration. The eye markings are distinct and confirm it’s a Titan Triggerfish. We’re cautious with tank placement due to its aggressive nature. It’s not for beginners, but fits well in a large reef-free setup.
Diana Vaughan –
The fish looks like a good match for the description. Eye shading is present, though not as pronounced as in some photos. We’re monitoring its behavior closely. It’s aggressive and needs a large tank with plenty of hiding spots.