Originally Posted by V-Lioness
The more docile triggers are Xanthichthys - Blue throat, Crosshatch, Sargassum, this group is more predictable. Than I would list the Niger (Odonus) or Pinktail (Melichthys), I have seen the good and bad in both of these fish.
Kaye
Like V lioness said, these 3 (blue throat, crosshatch, sargassum) are by far the more passive. Then niger and pink tail. Nigers are great though and still very good company for a fish only tank with large tank mates. What were you planning on adding and what tank size did you have in mind? This makes a big difference on whether the trigger will become hostile.