Blue-green Chromis

Superpower

Dives as one into the coral the instant a shadow passes overhead.

At a glance

Size

typically 8 cm, up to 10 cm

Lifespan

8–15 years

Depth

1–12 m

Habitat

Sheltered lagoons and reefs with branching staghorn coral.

Diet

Plankton picked from the water column.

Can I eat it?

No — this one is not eaten.

Fun facts

• •Whole shoals shimmer green-blue above a single coral head.
• •They dart into the coral branches together when threatened.
• •Males tend the eggs laid at the base of the coral.