Bluthroat Trigger - Xanthichthys auromarginatus
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The Blue Jaw Trigger (Xanthichthys auromarginatus), also known as the Bluejaw Triggerfish, is a striking and robust reef fish known for its vibrant blue markings and peaceful temperament compared to other triggerfish. Active and hardy, this species adds color and movement to the mid- and upper-water column of reef aquariums.
Common Name: Blue Jaw Trigger
Scientific Name: Xanthichthys auromarginatus
Family: Balistidae
Size: Up to 10 inches (25 cm)
Temperament: Semi-aggressive
Difficulty: Moderate
Reef Safe: With Caution
Native Region: Found throughout the Indo-Pacific, including Hawaii, Indonesia, and the Philippines, typically inhabiting coral reef slopes and drop-offs.
Tank Size: Minimum of 100 gallons
Temperature: 74–80°F (23–27°C)
pH: 8.0–8.4
Salinity: 1.023–1.025
Substrate/Decor: Open swimming areas with live rock for shelter; provide hiding spots and ample mid-water space.
