Blue Throat Triggerfish - PairINLCUDES 1X MALE & 1X FEMALE. The Blue Throat Triggerfish, also known as Bluechin Triggerfish, or Gilded Triggerfish, is grayish brown, covered with light blue spots. The fins are edged in yellow. The male of the species has a darker blue area on the cheeks, hence the name Bluechin or Blue Throat. A 125 gallon or larger aquarium with rocks and caves provides a good environment. The Blue Throat will rearrange the landscaping and rocks. It is said to