Niger Triggerfish

Red Toothed Triggerfish (Odonus niger)

This species has many names because its color is highly variable. It is called Niger Triggerfish, Black Triggerfish, Blue Triggerfish, Green Triggerfish, and Redtooth Triggerfish. It is the only species in the genus, but one of the best known. Its variable color is a result of mood. Before aquarists eyes, the fish will change from blue to black. At times it will even change to dark green or dark blue. The attractive coloring that this fish is known for is enhanced with a good feedings and illumination.

Another unusual feature of this fish is its conspicuous, red teeth. It also has a distinguishing protruding chin and long tail lobes.

This species approaches 19 inches and requires an aquarium of 75 gallons. This is one of the few Triggerfish species consistently described as peaceful. Even so, aquarists will want to all plenty of swimming room for this fish. When it swims fast, the propelling fins flap from side to side without undulation, making a wondrous display of locomotion. It will appreciate some live rock as place to hide when feeling threatened.

They are somewhat reef compatible. Although they will not harm corals, they will nip at sponges, tunicates, ornamental crustaceans, and snails. Cleaner shrimp may be kept with this species, but they must be added to the tank before the fish.

It is usually peaceful to other tank mates. Upon acclimation, it is shy but eventually becomes sociable. This is one triggerfish species that may be kept with more than one of its own kind. However, the individuals must be added simultaneously, as small juveniles for this to be possible. Aquarists must be careful when working in the tank, however. This species is known to bite lurking hands.