School of unicornfish (Naso unicornis)
![](https://eatlas.org.au/sites/default/files/styles/m_very_large/public/eatlas/articles/200_School-unicornfish-Naso-unicornis_Pickersgill-reef_GBR_LTMP_AIMS.jpg?itok=5XcVa7BE)
© courtesy LTMP, AIMS
Description
A huge school of unicornfish (Naso unicornis) vigorously parading around the reef slope on the front reef. This type of schooling and frantic activity usually precedes a spawning event.