Convict Tang Acanthurus Triostegus

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Convict Tang – Acanthurus triostegus

Overview:
The Convict Tang is a small, striking marine herbivore, easily recognized by its silver-white body marked with bold vertical black stripes. Its peaceful nature, active swimming, and algae-grazing behavior make it a popular choice for reef aquariums.

Origin:
Native to the Indo-Pacific, commonly found on coral reefs, lagoons, and shallow coastal areas from East Africa to the central Pacific.

Feeding:
Primarily herbivorous – thrives on marine algae, seaweed, and spirulina-based foods, supplemented with high-quality herbivore pellets or flakes to maintain vibrant coloration and digestive health.

Tank Tmates:
Ideal for peaceful community tanks. Can be kept with other tangs if the aquarium is large enough to reduce territorial behavior.

Aggression:
Mildly territorial – may defend grazing areas but generally peaceful with non-aggressive species.

Experience Level:
Beginner to intermediate aquarists – suitable for those maintaining a stable reef aquarium with ample swimming space and a steady supply of algae-based foods.

Water Parameters:

• Temperature: 74–80°F (23–27°C)

• pH: 8.1–8.4

• Salinity: 1.020–1.025

• Minimum Tank Size: 75+ gallons

The Convict Tang is a visually striking and peaceful herbivore, perfect for reef or community aquariums where an active algae grazer is desired.

Above images for illustration purposes only. Exact colours, patterns, and size may vary between individuals.

Please note: The livestock that is sold on our online site is not held in store at our Swell shop, or available for collection from the shop. Species sold at our Swell store will differ from ones available to order to your door.

All livestock deliveries are subject to our full Delivery Terms & Conditions, please read before ordering.