Emperor Angelfish

Superpower

Transforms from a blue-and-white spiral as a baby to gold-and-blue stripes as an adult.

At a glance

Size

typically 30 cm, up to 40 cm

Lifespan

15–20 years

Depth

1–100 m

Habitat

Coral-rich reefs and crevices.

Diet

Sponges, algae and small invertebrates.

Can I eat it?

No — this one is not eaten.

Fun facts

• •Juveniles are dark blue with white concentric rings — totally different from adults.
• •It can make a knocking sound to warn off rivals.
• •Its bold stripes are a favourite of underwater photographers.