Editor's note: This is part of a series of videos offering an up-close perspective on the animal kingdom. A special 360-degree video camera system was set up in zoos and other facilities to show how the animals view their world as they interact.

Also visit our special 360-DEGREE LIVES page (http://t.asahi.com/360lives), where you can watch all the previous videos.

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“Finding Nemo” has never been easier.

Kamogawa Seaworld in Kamogawa, Chiba Prefecture, boasts a cylinder-shaped water tank containing about 800 clownfish, the species that gained fame from the 2003 animated blockbuster.

The clownfish features jet black eyes and three white stripes on an orange, 5-centimeter-long body.

When a video camera was placed on the bottom of the tank, the clownfish stopped swimming in all directions and huddled in a large ball, an apparent sign of caution.

But as soon as aquarium attendant Naoya Muraguchi, 25, who was helping the shooting session, tossed food in the tank, the fish scrambled and jostled each other for a meal.

According to Muraguchi, clownfish live as pairs in their host anemone. It is rare in Japan for an aquarium to keep this many clownfish in a single water tank, he added.

Clownfish can also change their gender.

Females are the largest clownfish, followed by males and juveniles. If the female disappears, the male turns into a female and a male emerges from the juveniles, Muraguchi said.