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FishbeginnerSaltwater

Scopas Tang

Zebrasoma scopas

AnimaliaChordataActinopterygiiAcanthuridae

📍 Indo-Pacific Reefs, Red Sea to Japan

Ask Finn

Elegant, understated tang ranging from brown to blue-grey with fine markings. Peaceful and hardy. Excellent algae grazer and reef-safe.

Size8"
Min Tank75g
semi-aggressive
Zoneall

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.

Common Diseases

Marine Ich (Cryptocaryon irritans)

Symptoms

White spots on body and fins, rapid breathing, flashing against rocks, lethargy

Treatment

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

Symptoms

Frayed or deteriorating fin edges, discoloration at fin bases, progressive fin loss

Treatment

Improve water quality and reduce stress; perform frequent water changes; use antibiotic treatments if bacterial infection is confirmed

Velvet Disease (Oodinium)

Symptoms

Fine golden or rust-colored dust on body, rapid breathing, scratching behavior, loss of appetite

Treatment

Increase aeration, raise temperature to 28°C, use copper-free velvet treatments; quarantine and treat separately if possible

Nutritional Deficiency

Symptoms

Faded coloration, lethargy, poor appetite, stunted growth, susceptibility to disease

Treatment

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

Stats

Community tips0
Kept by0 hobbyists