This small fish features a slender body with a striking blue line running along its side. Notably, it exhibits a unique behavior of guarding its eggs in its mouth.
Habitat
Inhabits shallow coastal waters and coral reefs.
Diet
Feeds on small zooplankton and crustaceans.
How common
Common
Recent Sydney Cardinalfish sightings near you
Live, research-grade observations from iNaturalist. Allow location to center the map on you.
Spotted a Sydney Cardinalfish?
Point Huck at any plant, bird, or animal and know for sure - plus a live map of where it is being spotted near you.
5,300+species
63national parks
50states