Tang Scopas - Medium

Scopas Tang

The Scopas Tang is a hardy and underrated addition to the saltwater aquarium hobby, often appreciated by reef keepers for its algae-eating abilities and calm disposition. These fish are an ideal choice for both beginner and experienced marine aquarists looking to add a functional yet attractive herbivore to their reef or fish-only system.

The body of the Scopas Tang is disc-shaped and oval, like most members of the Zebrasoma genus. It displays a colour gradient that begins with a dark brown to black front half, transitioning into a paler, olive-yellow hue toward the tail. The body is overlaid with a pattern of fine lines and speckling that creates a subtle yet beautiful visual texture, particularly under aquarium lighting. Their long, sail-like dorsal fins and active swimming habits make them graceful gliders through rockwork and coral.

Breeding Scopas Tangs in home aquariums is very rare. They're open-water spawners, releasing eggs and sperm while swimming mid-water at dusk. The eggs are free-floating and hatch into tiny larvae that need large tanks and specialised food, making home breeding nearly impossible. However, aquaculture efforts are slowly making captive-bred Scopas Tangs more available to hobbyists.

Tank Recommendations for Scopas Tang

Scopas Tangs can reach a maximum size of around 20 cm, so they require an aquarium of at least 300 litres. A longer tank with ample rockwork for grazing and hiding spots is best. These tangs are active swimmers and will appreciate open water swimming space in addition to hiding crevices among live rock.

A well-established reef tank with live rock, macroalgae, and high water quality is ideal for this species. They tolerate a wide range of lighting conditions and are reef-safe, meaning they will not nip at corals or inverts.

Suitable Tank Buddies

The Scopas Tang is semi-aggressive, especially toward other tangs or similarly shaped species. They are best housed with peaceful to semi-aggressive tank mates and should not be kept with other Zebrasoma unless in large aquariums.

Usually Compatible

Clownfish, wrasses, gobies, cardinalfish, anthias, blennies, chromis, and most reef-safe inverts.

Sometimes Compatible

Other tangs (Zebrasoma, Acanthurus, Ctenochaetus) are introduced carefully and in large tanks. Semi-aggressive fish like dwarf angels and dottybacks may also be suitable with caution.

Rarely Compatible

Large predatory fish such as lionfish or groupers, and aggressive tangs like Sohal or Clown Tangs, in small spaces.

Feeding your Scopas Tang

Scopas Tangs are primarily herbivores and should be fed a diet high in marine-based algae and seaweed. Their natural behaviour includes constant grazing, so providing algae sheets (nori) clipped to rocks or glass is ideal.

They will also accept pellets, flake food, spirulina-based mixes, and occasionally frozen surgeonfish foods like mysis or brine shrimp. A diet rich in vegetable matter will enhance their colour and immunity, while also reducing the risk of lateral line disease.