Naso Tang
Naso lituratus
Also known as Orangespine Unicornfish, Lipstick Tang, Naso Lituratus
Care at a glance
- Temperature
- 73–82°F (23–28°C)
- pH
- 8.1–8.4
- Adult size
- 17.7 in (45 cm)
- Minimum tank
- 180 gal (680 L)
- Temperament
- Mostly peaceful
- Social behavior
- Solitary
- Swim level
- Middle
- Difficulty
- Medium
- Breeding
- No record
- Rarity
- Common
- Reef safe
- Reef safe
- Origin
- Pacific Ocean
- Family
- Acanthuridae
Overview
A generally peaceful, reef-safe tang that will not touch corals, but it grows large (to around 45 cm) and needs a big tank, so it is best suited to established, spacious systems. It can be mildly territorial toward other Naso or similarly shaped tangs but is calm with most tankmates. Its diet must be built around brown macroalgae and dried marine algae, not just meaty foods, or it declines over time.
In the wild
A large Pacific surgeonfish of outer reef slopes and channels where it feeds on tough brown macroalgae like Sargassum, Dictyota and Padina, cruising along the reef face in moderate to strong current. It is a powerful, wide-ranging swimmer that needs a very long tank with big open swimming lanes and strong flow, not just tall rockwork.
Good to know
Naso lituratus is the orangespine unicornfish: unlike true unicornfish it grows no horn, but it carries two fixed orange, forward-hooking scalpel plates on each side of the tail base, set in bright orange, that it uses as slashing weapons. Adults develop trailing filaments on the tail lobes and a striking yellow-and-black facial mask with orange lips, the source of the lipstick tang nickname.
Did you know
The fixed orange tail spines are permanently locked in the extended position rather than folding away like most surgeonfish scalpels, so this fish is essentially always armed and can slash sideways at a rival or a careless hand at any moment.
Where to buy
Some links may not be the exact species or variety.
- LiveAquaria Freshwater and saltwater fish, inverts and corals
- Saltwaterfish.com Marine fish, corals and inverts shipped overnight
…or ask your local fish store.
Appears in
Saltwater fish · Tangs & surgeonfish · Reef-safe fish · Monster fish
Keeping Naso Tang?
Track water tests, reminders and stocking fit.
Related species

Blonde Naso Tang
Naso elegans17.7 in (45 cm)180 gal (680 L)75–81°F (24–27°C)
Spotted Unicornfish
Naso brevirostris21.7 in (55 cm)343 gal (1,300 L)75–81°F (24–27°C)
Bluespine Unicornfish
Naso unicornis23.6 in (60 cm)396 gal (1,500 L)75–81°F (24–27°C)
Vlamingi Tang
Naso vlamingii23.6 in (60 cm)359 gal (1,360 L)75–81°F (24–27°C)
Red Sea Sailfin Tang
Zebrasoma desjardinii15.7 in (40 cm)180 gal (680 L)75–82°F (24–28°C)
Atlantic Blue Tang
Acanthurus coeruleus13.8 in (35 cm)151 gal (570 L)75–81°F (24–27°C)
