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The Yellow Scopas Tang (Zebrasoma scopas) is an attractive marine surgeonfish prized for its distinctive body shape, active swimming behaviour and striking yellow colour variation. The Scopas Tang is normally recognised by its brown to olive body with fine mottled markings and lighter facial patterns. However, selectively coloured and naturally occurring yellow specimens are particularly sought after by marine aquarium enthusiasts.
The Yellow Scopas Tang retains the characteristic oval, laterally compressed body and elongated snout of the Scopas Tang, along with the sharp defensive spines located on either side of its tail. Its yellow colouration makes it an eye-catching addition to larger marine aquariums.
Native to the Indo-Pacific, Scopas Tangs inhabit coral reefs, lagoons and coastal reef environments. They are active grazers, spending much of their day swimming around the reef and feeding on naturally occurring algae.
Behaviour and Temperament
Scopas Tangs are active, generally hardy marine fish that become confident aquarium inhabitants once established. They are typically semi-aggressive and can become territorial, particularly towards other surgeonfish with similar body shapes or feeding habits.
They are best suited to larger marine aquariums with plenty of open swimming space and established live rock. Although they can be kept with a variety of reef fish, care should be taken when introducing other tangs.
Scopas Tangs are usually more manageable when kept as the only tang in smaller reef systems. In larger aquariums, carefully planned introductions and sufficient space can help reduce territorial aggression.
Aquarium Requirements
A spacious, mature marine aquarium with strong water movement, efficient filtration and stable water parameters is essential.
Scopas Tangs are active swimmers and require plenty of unobstructed swimming space. Live rock provides grazing surfaces, natural shelter and additional areas for algae growth.
A minimum aquarium volume of approximately 350 litres is recommended, although larger systems are preferable for long-term housing.
Maintain stable salinity, temperature and alkalinity, and ensure the aquarium has sufficient oxygenation. A secure lid is also recommended, particularly during the introduction period when fish may become startled.
Feeding and Nutrition
The Yellow Scopas Tang is primarily herbivorous, spending much of its day grazing on algae growing naturally on live rock and other aquarium surfaces.
A varied, algae-rich diet is essential for maintaining good health, supporting its immune system and maintaining vibrant colouration.
Recommended foods include:
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Marine nori and dried seaweed.
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Spirulina-based flakes and pellets.
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Herbivore marine pellets.
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Algae-based frozen foods.
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Mysis shrimp as an occasional supplementary food.
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Naturally occurring algae from established live rock.
Offer dried seaweed several times per week, preferably using a vegetable clip, alongside regular small meals. Multiple daily feedings are beneficial for this active grazing species.
Compatibility and Reef Suitability
Yellow Scopas Tangs are generally reef safe and can be housed with most corals, invertebrates and compatible marine fish.
They are active swimmers and can become territorial towards other tangs, particularly fish with similar body shapes or feeding habits.
Suitable tank mates may include:
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Compatible reef-safe angelfish.
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Other appropriately sized marine community fish.
Avoid introducing multiple Zebrasoma tangs into smaller aquariums, particularly where one fish has already established a territory.
Important: Scopas Tangs possess sharp retractable spines on either side of their tail. Take care when handling or transferring this species.
Quick Care Guide
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Care requirement
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Details
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Scientific Name
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Zebrasoma scopas
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Common Name
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Yellow Scopas Tang
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Origin
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Indo-Pacific
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Care Level
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Moderate
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Adult Size
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Approximately 20–25cm
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Minimum Aquarium Size
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450 litres
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Temperature
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23–27°C
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pH
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8.1–8.4
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Salinity
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1.023–1.026 SG
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Water Hardness
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8–12 dKH
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Diet
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Primarily herbivore
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Temperament
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Semi-aggressive
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Swimming Level
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All levels, predominantly open water and rockwork
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Reef Compatibility
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Reef Safe
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Aquarium Type
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Marine / Reef Aquarium
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Social Behaviour
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Best kept individually in most home aquariums
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Frequently Asked Questions
1. Is the Yellow Scopas Tang a different species from the regular Scopas Tang?
No. The Yellow Scopas Tang is sold as a yellow colour variation of Zebrasoma scopas. It is not a separate scientifically recognised species. Standard Scopas Tangs typically display brown and olive tones, while yellow specimens have more prominent yellow colouration.
2. How big does a Yellow Scopas Tang grow?
They can reach approximately 20–25cm in aquarium conditions. Their active swimming behaviour and adult size make a large aquarium essential.
3. Is the Yellow Scopas Tang reef safe?
Yes. They are generally considered reef safe and will not normally bother corals or ornamental invertebrates. Their natural diet consists primarily of algae.
4. What does a Yellow Scopas Tang eat?
They primarily eat marine algae and should receive a regular supply of nori, seaweed, spirulina-based foods and herbivore pellets. Occasional meaty foods can supplement their diet.
5. Can I keep a Yellow Scopas Tang with other tangs?
Yes, in appropriately sized aquariums with carefully planned introductions. However, Scopas Tangs can be territorial towards other surgeonfish, particularly other Zebrasoma species. Keeping one per aquarium is generally the safest approach.
6. Will a Yellow Scopas Tang help control algae in my aquarium?
Yes. They are active algae grazers and will browse naturally occurring algae on live rock and other surfaces. However, they should not be relied upon as a replacement for regular aquarium maintenance.
Common Mistakes
1. Keeping them in undersized aquariums: Yellow Scopas Tangs are active swimmers that require considerable open swimming space. Small aquariums can contribute to stress and territorial aggression.
2. Not providing enough vegetable matter: A diet consisting primarily of meaty foods is unsuitable. Provide regular marine algae, nori and spirulina-based foods.
3. Keeping multiple tangs without adequate space: Scopas Tangs can become aggressive towards similar species. Carefully consider compatibility and aquarium size before introducing additional tangs.
4. Introducing them into immature aquariums: They benefit from established live rock, stable water parameters and naturally occurring grazing surfaces.
5. Ignoring water quality: Poor water quality and unstable salinity can cause stress and increase susceptibility to disease. Maintain excellent filtration and regular water changes.
6. Handling them incorrectly: Their tail spines can cause injuries and damage aquarium nets. Use appropriate containers and take care when transferring or handling the fish.
