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Naso Tang
Naso lituratus
Animalia›Chordata›Actinopterygii›Acanthuridae
📍 Indo-Pacific — Red Sea to Hawaii
Elegant tang with a characteristic orange-tipped rostrum, blue-trimmed fins, and long tail streamers in mature males. A graceful, active swimmer that needs a large tank. Excellent algae control.
Care Guide
Diet
Naso tangs are primarily herbivorous and require a diet rich in marine algae and vegetable matter. Offer nori (dried seaweed), spirulina flakes, and high-quality herbivore pellets daily, supplemented 2-3 times weekly with frozen mysis shrimp or other meaty foods. Feed small portions multiple times daily to mimic natural grazing behavior.
Behavior
Naso tangs are active, graceful swimmers that require ample open water for cruising and displaying their characteristic flowing tail streamers (in mature males). They are semi-aggressive and may chase smaller or slower-moving fish, particularly other tangs, but are generally peaceful toward larger, faster species. They are excellent algae controllers and spend much of their time grazing on surfaces.
Breeding
Breeding Naso tangs in captivity is extremely rare and has not been reliably documented in home aquariums. They require very large systems, specific environmental triggers, and larval rearing capabilities that are beyond typical hobbyist setups. Captive-bred specimens are virtually unavailable; wild-caught fish dominate the trade.
Tank Mates
Similar saltwater requirements and peaceful temperament; sufficient tank size prevents aggression
Algae-grazing behavior complements the tang; occupies different swim zones
Bottom-dwelling species with minimal competition; peaceful and hardy
Provides health benefits through parasite removal; tang tolerates shrimp presence
Similar size and activity level but may compete for space; monitor for aggression
Common Diseases
Marine Ich (Cryptocaryon irritans)
White spots on body and fins, rapid breathing, flashing against surfaces, lethargy
Increase water temperature to 28-29°C, maintain excellent water quality, consider copper-based treatments or hyposalinity therapy; quarantine infected fish
Fin Rot
Frayed or deteriorating fin edges, discoloration at fin margins, progressive fin loss
Improve water quality and reduce stress; perform frequent partial water changes; use antibiotic treatments if bacterial infection is confirmed
Velvet Disease (Amyloodinium ocellatum)
Fine golden or rust-colored dust on body, rapid breathing, scratching behavior, loss of appetite
Raise temperature to 28-29°C, maintain high oxygen levels, use copper treatments or hyposalinity; quarantine immediately to prevent spread
Head and Lateral Line Erosion (HLLE)
Pitting or erosion of head and lateral line, loss of sensory pores, progressive tissue damage
Improve diet quality with varied foods rich in vitamins and fatty acids; enhance water quality; supplement with vitamin-enriched foods
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Quick Facts
- pH
- 8.1–8.4
- diet
- herbivore — nori, algae, mysis
- maxSize
- 18 inches
- minTankSize
- 100 gallons
- temperature
- 75–82°F (24–28°C)
Temperature
75–82°F
24–28°C