Triggerfish Redtooth SML

Redtooth Triggerfish - Small

Triggerfish Niger MED

Niger Triggerfish - Redtooth Medium

Triggerfish Clown MED

Clown Triggerfish - Medium

Redtooth Triggerfish - Small

Odonus Niger

Red Tooth Triggerfish are famed for their mouth which seems to be grinning permanently which unsurprisingly is full of red, needle like teeth. Along with its impressive crescent shaped tail this fish will surely add some character into your tank.

Availability: Out of stock

Triggerfish Redtooth


This species of triggerfish ranges from a deep purple colouring through to dark and light blue shades. They also have the ability to change colour depending on their mood and environment. Its distinctive protruding chin can make it seem quite threatening, but it is actually one of the most peaceful species of triggerfish.

There are no visible differences between males and females. In the wild, they will form distinct pairs with the males establishing territory and guarding the eggs after the female has laid them. No success has been had when trying to breed this species in an aquarium setting.

The Red Tooth Triggerfish has a unique swimming style that uses its rear fins in a propeller-like motion. This lets this species move around extremely easily.

Red Tooth Triggerfish are found all over the Indo-Pacific region as well as the Red Sea. They can be found at depths of up to 30 metres from the Great Barrier Reef all the way over to South Africa. Normally they will hide in crevices to avoid getting swept away. They have been seen forming large schools in order to feed on zooplankton that gets swept in by currents.

Tank Recommendations for the Red Tooth Triggerfish

These fish can grow quite large so the smallest tank size of 680 litres is advised. They will generally adapt to most settings with no specific lighting or water movement requirements. Provide some patches of rock for shelter and rest along with plenty of open space to move around and grow. They are safe with corals but as mentioned they love to swim around and will destroy a reef setting if it is too crowded.

Suitable Tank Buddies

Being one of the more peaceful species of triggerfish they can be kept with a large variety of other species. As it grows bigger it may become more aggressive and each fish may be different. One could get along fine with everyone while a different trigger may terrorise their tank buddies so exercise caution and keep an eye on them.

Usually Compatible

Red Tooth Triggerfish will not harm your live coral intentionally. They are normally friendly towards any other species, but at the end of the day, they are still triggerfish. So they can turn at any moment so there is no guarantee with any fish species whether they will get along or not.

Sometime Compatible

If watched carefully for signs of aggression these fish can be kept with species such as large and dwarf Angelfish, Boxfish and Butterflyfish. Groupers, Grunts and Pufferfish may be acceptable tank buddies also as long as they are observed in case of fighting. Success can sometimes be had when combining with Parrotfish, Lionfish, Tangs and even other Triggerfish.

Rarely Compatible

Crustaceans and invertebrates will more than likely get eaten so avoid keeping them in the same tank unless intentionally providing them as food. Seahorses and Pipefish will not feed with a species such as this present in the tank. Bigger predators such as Sharks should not be considered either.

Feeding Your Red Tooth Triggerfish

This fish is an omnivore and in the wild will feed on zooplankton and pretty much anything else it can get its mouth on. In the aquarium, their diet will mostly be carnivorous and they will love meaty foods such as krill and thawed mysis or brine shrimp. Offer them dried pellets and flakes as well to maintain vitamin intake. Feed them 2-3 times a day but take care as they have been known to bite the hand that feeds them and trust us, it's painful!

More Information
Scientific Name Odonus Niger
Care Level Moderate
Common Names The Red Tooth Triggerfish is also known as the Blue Triggerfish and the Niger Triggerfish.
Diet Omnivore
Fish Family Balistidae
Lifespan (years) 10
Max. Length (cm) 46
Min. Tank Volume (l) 680
Origin Indo-Pacific
Reef Safe With Caution
Sociability Semi-aggressive
Venomous No
Water Conditions 24-28° C, dKH 8-12, pH 8.1-8.4, sg 1.021-1.025
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