Fishician®Diet
Carnivore – frozen mysis, krill, marine pellets; varied meaty diet
Aquarium species profile
Blue Jaw Trigger
Xanthichthys auromarginatus · Indo-Pacific (Hawaii, Indonesia, Philippines)
Minimum tank100 gal
Adult size10"
Care levelEasy
TemperamentSemi-Aggressive
Temperature72–82°F
pH range8.1–8.4
Compatible tank mates
Most semi-aggressive reef fish; one of few reef-safe triggers
Tank mates to avoid
Very small fish, ornamental shrimp; other triggers
Care notes
Considered reef-safe with caution—rare among triggers. Males display striking blue jaw and yellow tail tips. Pelagic; needs swimming space. Generally peaceful for a trigger.
Check the whole aquarium. Tank size alone does not establish compatibility. Confirm adult size, water overlap, social grouping, territory, diet, and the individual animals before stocking.