Tahiti Butterflyfish
Chaetodon trichrous
Also known as: Tahitian Butterflyfish
A rarely seen Pacific butterflyfish from the islands of Tahiti.

About
The Tahiti butterflyfish (Chaetodon trichrous) is a regional endemic found only around the Society Islands, Tahiti, and the Tuamoto Islands in the eastern Pacific. A distribution so limited that it rarely makes an appearance in the hobby. In the wild, this species inhabits lagoon reef environments, where it tends to be found alone or in bonded pairs, the latter being especially common during breeding periods. Its limited range makes it an uncommon find compared to the widely distributed butterflyfishes most hobbyists are familiar with. In terms of temperament, it is generally peaceful and tends to coexist without much friction alongside typical reef tankmates, which makes it a reasonably manageable choice once you can actually source one. That said, like most butterflyfishes, it deserves a spacious, well-maintained setup and a keeper who understands the dietary and environmental demands of the group. Chaetodon trichrous is a carnivore, so varied meaty foods are the foundation of a good feeding routine. It is classified as intermediate in care level, meaning this is not the best starting point for a first saltwater tank, but it is well within reach for someone who has kept marines before and wants something a little out of the ordinary.
Similar species
Other fish you might consider
Good tank mates
Species that tend to coexist peacefully with Tahiti Butterflyfish
From the same region
Share the same natural habitat. Great for a biotope-themed tank
Frequently asked questions
- How big does the Tahiti Butterflyfish get?
- The Tahiti Butterflyfish reaches about 3–6" as an adult.
- What size tank does the Tahiti Butterflyfish need?
- A minimum of 70 gallons is recommended for the Tahiti Butterflyfish.
- What water parameters does the Tahiti Butterflyfish need?
- The Tahiti Butterflyfish does best with a temperature of 72–82°F, a pH of 8–8.4.
- Is the Tahiti Butterflyfish aggressive?
- The Tahiti Butterflyfish is generally peaceful and suits a community tank with similarly calm tankmates.
- What does the Tahiti Butterflyfish eat?
- The Tahiti Butterflyfish is a carnivore. It needs a meaty, protein-rich diet of frozen or live foods.
- How long does the Tahiti Butterflyfish live?
- With good care, the Tahiti Butterflyfish typically lives 4-6 years.
- Is the Tahiti Butterflyfish reef safe?
- The Tahiti Butterflyfish is generally considered reef safe.