The Bluespine Unicornfish, or Unicorn Tang, is a true giant reaching a Max Size of 70 cm. It is famous for developing a prominent "horn" on its forehead as it matures. Its body is a sleek olive-to-grey, and its tail base features two bright blue, forward-pointing spines. They are extremely active and powerful swimmers that require massive aquariums. They are peaceful and intelligent, often developing unique personalities, but their sheer size makes them suitable only for the largest of home systems or public aquaria.
| Feature |
Specification |
| Scientific Name |
Naso unicornis |
| Max Size |
70 cm |
| Colour |
Olive-grey with blue tail spines/fin accents. |
| Shape |
Elongated with a forehead horn. |
| Location |
GBR (QLD) / Indo-Pacific. |
| Diet |
Herbivore (Macroalgae). |
| Water Temp |
24°C – 28°C. |
| Temperament |
Peaceful to Semi-aggressive. |
| Aquarium Size |
1000+ Litres. |
| Reef Safe? |
Yes. |