The Blue-Green Chromis is a small, colourful marine fish with a shimmering blue-green body and a forked tail. It lives in groups near branching corals in tropical reefs and lagoons. Its peaceful schooling behaviour makes it a fascinating fish to observe.
Scientific Name
Chromis viridis
Habitat
Tropical coral reefs, shallow lagoons and sheltered reef flats across the Indo-Pacific region. Often found swimming above branching corals.
Conservation
Least Concern (LC) — IUCN Red List.
Lifespan
Approximately 3–4 years; actual lifespan varies with environmental conditions and care.
Fun Fact
Blue-Green Chromis swim together in large schools. Their colour can appear blue or green depending on the light. They often shelter among branching corals. Males guard the eggs after spawning. Their eggs can hatch within approximately 2–3 days.
Diet
Primarily plankton, including tiny crustaceans and other microscopic marine organisms. In aquariums, it can also accept suitable marine fish foods.
Average Size
Up to approximately 10 cm (4 inches).
Location / Placement info
Displayed in the Coastal Reef Exhibit, near the Ocean-View Tunnel
FAQ
What is a Blue-Green Chromis?
The Blue-Green Chromis (Chromis viridis) is a small marine fish known for its beautiful shimmering blue-green colour.
Where does the Blue-Green Chromis live?
It lives in tropical coral reefs and shallow lagoons across the Indo-Pacific region.
What does the Blue-Green Chromis eat?
It mainly feeds on plankton, tiny crustaceans, and other microscopic marine organisms.
How big can a Blue-Green Chromis grow?
It can grow up to approximately 10 cm (4 inches) in length.
Why does the Blue-Green Chromis swim in groups?
Swimming in groups helps the fish find food, stay safe from predators, and interact with other members of its species.
Blue-Green Chromis (Chromis viridis) – Facts and Habitat
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