Convict Tang - Fiji - MAC Certified

Acanthurus triostegus


(0 Reviews)

Convict Tang - Fiji - MAC Certified

Convict Tang - Fiji - MAC Certified

Acanthurus triostegus


(0 Reviews)

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Care Facts

Care Level: Easy
Temperament: Peaceful
Diet: Omnivore
Reef Safe: Yes
Minimum Tank Size: 120 gallons
Max Size: 8 inches

The Convict Tang is also commonly referred as the Convict Surgeonfish. It features a stunning white to silver body highlighted with six vertical black bars that adds a captivating addition to any tank. The Convict Tang features peduncle spines near the tail in a small size, unlike other tangs which has bigger spines. The Convict Tang should not be housed with other tangs, but can lives peacefully with the same specie fish, i.e. other Convict Tangs, if introduced at the same time. It does not have any distinguishing characteristics that can differentiate males from females. It is mainly a herbivore but feeds on meaty foods as well. It is also important to provide them plenty of marine based seaweed and algae. The Convict Tang should be fed at least three times per week with dried seaweed tied to a rock. 



Convict Tang (Acanthurus triostegus): A Practical Care Guide

The Convict Tang, scientifically known as Acanthurus triostegus, is a popular and hardy marine species that can be a valuable addition to your saltwater marine aquarium. This comprehensive guide will provide essential information on caring for this intriguing fish, covering its habitat, compatibility, diet, care requirements, and more.

Habitat of the Convict Tang

Convict Tangs are native to the tropical waters of the Indo-Pacific region, specifically in areas near coral reefs and rocky shorelines. They inhabit depths ranging from 1 to 40 feet (0.3 to 12 meters) and are commonly found in areas with strong water flow, such as reef slopes and channels.

Reef Compatibility of the Convict Tang

This species is generally considered reef-safe. Convict Tangs are herbivorous and primarily feed on algae. They can help control algae growth on live rock and coral surfaces in captivity. While they occasionally graze on some macroalgae, their impact on coral health is minimal.

Size and Lifespan of the Convict Tang

Convict Tangs typically reach about 6 to 8 inches (15 to 20 cm) when fully mature. They can live 5 to 7 years in captivity with proper care, offering several years of enjoyment for dedicated aquarists.

Diet in Captivity of the Convict Tang

In their natural habitat, Convict Tangs primarily feed on various types of algae, including film and macroalgae. In captivity, it's crucial to replicate their natural diet. Provide them with high-quality marine algae sheets, seaweed, and a mix of marine pellets and frozen foods such as brine shrimp and mysis shrimp.

Aquaculture and Availability of the Convict Tang

Convict Tangs are not available through aquaculture. However, Saltwaterfish.com is committed to providing hobbyists with responsibly sourced fish, ensuring that each Convict Tang is healthy, acclimated, and ready to thrive in your aquarium.

Compatibility with Other Fish and Invertebrates of the Convict Tang

Convict Tangs are generally peaceful and can coexist with a wide range of tank mates. However, they may exhibit territorial behavior toward other tangs or fish with similar body shapes. Ensure your aquarium is large enough to accommodate their swimming and territorial needs.

Sexual Dimorphism of the Convict Tang

Sexual dimorphism in Convict Tangs is minimal, and distinguishing between males and females based on visual characteristics is challenging.

Juvenile to Adult Coloration Changes of the Convict Tang

Juvenile Convict Tangs typically exhibit a striking black-and-white coloration with alternating bands. As they mature into adults, their coloration may become less vivid, with some individuals developing a more subdued appearance.

Temperament of the Convict Tang

Convict Tangs are known for their generally peaceful character. They are social fish and can thrive when kept with other peaceful tank mates. However, as with any fish, providing them with sufficient space and hiding spots is essential to reduce potential territorial conflicts.

Tank Requirements of the Convict Tang

To provide the best care for your Convict Tang, maintain a tank with a minimum size of 120 gallons. Larger tanks are recommended for multiple tangs or when housing them with other tang species. Water conditions should mimic their natural habitat, with a pH level between 8.1 and 8.4, a salinity level of 1.020-1.025, a stable temperature between 74-78°F (23-26°C), and moderate water flow to simulate ocean currents.

Common Names of the Convict Tang

The Convict Tang is also known by various names, including Convict Surgeonfish and Convict Blenny.

Compatible Tank Mates of the Convict Tang

Here are five specific species that can make suitable tank mates for your Convict Tang:

Why Choose the Convict Tang from Saltwaterfish.com

When you acquire a Convict Tang from Saltwaterfish.com, you're investing in a hardy and adaptable addition to your saltwater marine aquarium. Saltwaterfish.com is dedicated to responsibly sourced fish, ensuring each Convict Tang is healthy, acclimated, and ready to thrive in your aquarium. With their commitment to quality and a wealth of resources, Saltwaterfish.com makes it easy to enjoy these tangs' unique beauty in your home aquarium.

The Convict Tang (Acanthurus triostegus) offers a striking and adaptable presence in saltwater marine aquariums. With their unique coloration and hardy nature, they can be a valuable choice for both beginner and experienced aquarists looking to add a touch of vibrancy to their collection. By adhering to their specific requirements and providing a suitable environment, aquarists can witness the Convict Tang's presence in their aquatic habitat.

Loved ever bit of this fish! Very kind tang. Gets along with all species in the tank. Loves to eat just like all tangs. If you don’t already have one, be sure to pick one up.


Reviewed by: Dale Pichelmayer on Feb. 21, 2024

Didn’t pass inspection so still give 5 stars for caring for the specimen


Reviewed by: Mike Perdue on Jan. 30, 2024

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