Blonde Lipstick Tang

Blonde Lipstick Tang

The Blonde Lipstick Tang (Naso lituratus), more widely known as the orangespine unicornfish, is a large and striking surgeonfish from the Pacific. Its grey-to-olive body is set off by a black facial mask, bright orange lips, a yellow dorsal fin and — most distinctively — two fixed, vivid orange caudal spines near the tail that give the genus its "lipstick" and "scalpel" nicknames. Despite its size it is one of the hardier large tangs and a long-standing favourite for big reef and fish-only systems.

It carries the Naso hallmark of fixed forward-pointing tail spines rather than the folding scalpel of other surgeonfish, so it should be handled with particular care.

Natural Habitat & Origin

Naso lituratus ranges across the eastern Indian Ocean and western Pacific, including the Great Barrier Reef and Hawaii. It lives on coral reefs where it grazes on leafy and brown macroalgae, often seen in pairs or small groups moving over the reef.

In the aquarium it wants open swimming space, strong flow and good oxygenation, plus a steady supply of marine algae to browse.

Care Requirements

Maintain stable marine conditions: salinity around 1.024–1.026, pH 8.1–8.4, and a temperature of about 24–26°C (75–79°F), with strong water movement and high oxygen levels. This is a big, active fish — reaching up to about 45 cm (18 inches) in the wild, though often smaller in captivity — and it needs a large tank, on the order of 570 litres (around 150 US gallons) or more, with plenty of length to swim.

A mature system with natural algae growth, combined with vigorous flow, suits it well.

Diet & Feeding

The Blonde Lipstick Tang is a herbivore specialised on brown macroalgae, with gut bacteria that help it digest tough algal matter. Offer a generous plant-based diet: dried marine algae (nori) on a clip — ideally including brown algae such as kelp — herbivore and spirulina preparations, and algae-based frozen foods, with occasional meaty items. Frequent feeding is important to keep this big grazer in good condition.

Behavior & Temperament

Naso lituratus is semi-aggressive, generally less belligerent than many Zebrasoma tangs but still territorial, particularly toward other unicornfish. It is best kept as the only Naso in all but very large systems, and can be housed as a pair given enough space. Its fixed orange tail spines are formidable defensive weapons.

Tank Mates

House it with other robust marine fish — other tangs (with care and space), large wrasses, angelfish and similar. Avoid very small, timid fish that may be intimidated. It is reef-safe, grazing algae rather than corals or ornamental invertebrates, making it a good large fish for a big reef.

Breeding

Naso lituratus is a pelagic spawner with planktonic larvae and is not bred in the home aquarium. Trade specimens are wild-collected.

Common Health Issues

Like other surgeonfish, the Blonde Lipstick Tang is susceptible to marine ich (Cryptocaryon irritans) and marine velvet (Amyloodinium ocellatum), especially when stressed, and it is sensitive to low oxygen and poor water quality. Quarantine new arrivals, maintain pristine, well-oxygenated water with strong flow, and provide an algae-rich diet. Given the space and conditions it needs, it is one of the hardier and more rewarding large tangs for an intermediate keeper.