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Scopas Tang
Zebrasoma scopas
Animalia›Chordata›Actinopterygii›Acanthuridae
📍 Indo-Pacific Reefs, Red Sea to Japan
Elegant, understated tang ranging from brown to blue-grey with fine markings. Peaceful and hardy. Excellent algae grazer and reef-safe.
Care Guide
Diet
Scopas tangs are primarily herbivorous and require a diet rich in marine algae and vegetable matter. Feed high-quality herbivore pellets or flakes daily, supplemented with nori sheets, spirulina, and blanched vegetables 3-4 times weekly. Occasionally offer frozen mysis shrimp or brine shrimp as a protein supplement, though they should comprise less than 10% of the diet.
Behavior
Scopas tangs are generally peaceful and hardy, spending most of their time grazing on algae throughout the tank. They are active swimmers that patrol all water zones and are excellent algae controllers for reef environments. While mostly docile, they can become territorial toward other tangs or similar-shaped fish, especially as they mature.
Breeding
Breeding Scopas tangs in captivity is extremely rare and has not been reliably documented in home aquariums. They are pelagic spawners that require very large systems and specific environmental triggers to breed. Captive-bred specimens are occasionally available from specialized breeders, but natural spawning in home tanks is virtually impossible.
Tank Mates
Similar peaceful temperament and compatible water parameters; both reef-safe
Both herbivorous tangs; may show minor territorial behavior but generally compatible in larger tanks
Beneficial symbiotic relationship; shrimp remove parasites and dead skin from tang
Peaceful algae grazer with similar dietary needs; both reef-safe and non-aggressive
Peaceful nocturnal fish that occupies different zones; no competition or aggression
Common Diseases
Marine Ich (Cryptocaryon irritans)
White spots on body and fins, rapid breathing, flashing against rocks, lethargy
Raise temperature gradually to 28-29°C, maintain excellent water quality, use copper-free ich treatments or UV sterilization; quarantine infected fish if possible
Fin Rot
Frayed or deteriorating fin edges, discoloration at fin bases, progressive fin loss
Improve water quality and reduce stress; perform frequent water changes; use antibiotic treatments if bacterial infection is confirmed
Velvet Disease (Oodinium)
Fine golden or rust-colored dust on body, rapid breathing, scratching behavior, loss of appetite
Increase aeration, raise temperature to 28°C, use copper-free velvet treatments; quarantine and treat separately if possible
Nutritional Deficiency
Faded coloration, lethargy, poor appetite, stunted growth, susceptibility to disease
Ensure varied herbivorous diet with quality pellets, nori, and spirulina; supplement with vitamin-enriched foods; maintain stable water parameters
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Quick Facts
- pH
- 8.1–8.4
- diet
- herbivore
- maxSize
- 8 inches
- salinity
- 1.023–1.025 SG
- minTankSize
- 75 gallons
- temperature
- 75–81°F (24–27°C)
Temperature
75–81°F
24–27°C