Native to the Banggai Islands of Indonesia, this species occupies a very small geographic range less than 4,000 miles wide. They are found in around jetties and within sea grasses. They are even known to hide in the spines of sea urchins for protection against predators!
While these fish are extremely small now, they will grow to be about three inches in length. The Banggai, along with other cardinalfish, eat plankton and small, bottom-dwelling crustaceans.
Banggai cardinalfish live in groups and are rather sedentary as a species. Their movement between groups is rather limited, which contributes to their small geographic range. While this behavior is instinctively protective, it could put them at risk for extinction from over fishing or climate change.
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