The Yellow Boxfish (Ostracion Cubicus) is a small fish that can only be seen in juvenile form in both Endless Ocean games.
These fish have square bodies that are covered in hard, multifaceted scales. The body colour of juvenile specimens is a bright yellow with many black spots. They can be seen year-round near coral reefs all over Manoa Lai.
As its name suggests, this fish is shaped like a box. Young fish are bright yellow with black spots, but their colour fades as they grow, and adults are a subdued brown. It has powerful teeth that allow it to eat shellfish and other hard-shelled prey, but it can also bite and injure if unnecessarily provoked.
In Endless Ocean, these little guys can be found near coral reefs all over the place in zoom-mode spots.
In Endless Ocean 2, they're found all over the Zahhab Region.