Napoleon Wrasse Care Guide
Cheilinus undulatus · Saltwater Wrasse
What Napoleon Wrasse look like
The Napoleon Wrasse, scientifically known as Cheilinus undulatus, is a large and robust fish characterized by its elongated body, which can reach a maximum adult size of up to 2.3 meters (7.5 feet) in length. This species exhibits sexual dimorphism, with males typically displaying more vibrant coloration and larger nuchal humps compared to females. The coloration ranges from a deep blue-green to a bright turquoise, adorned with intricate patterns of yellow and white spots. Notable morphological features include a prominent, thickened upper lip, which aids in its feeding behavior, and a series of large, conical teeth adapted for crushing hard-shelled prey. The lateral line is well-developed, allowing for enhanced sensory perception in its reef habitat. Defensive adaptations include its size and the ability to quickly retreat into crevices within the reef structure.
Behavior & temperament
The Napoleon Wrasse is known for its complex social behavior and is often observed in small groups or pairs, exhibiting a loose social hierarchy. It typically inhabits shallow coral reefs, swimming at various levels but often found near the substrate. Breeding behavior involves elaborate courtship displays, where males perform intricate swimming patterns to attract females. This species is generally considered to be docile but can exhibit territorial aggression, particularly during breeding seasons. Its behavior is characterized by a curious nature, often approaching divers and exhibiting a level of intelligence that allows for interaction with other species.
Diet & feeding
In the wild, the Napoleon Wrasse is primarily carnivorous, feeding on a diet that includes mollusks, crustaceans, and echinoderms. In captivity, it requires a varied diet of high-quality marine pellets, frozen or live foods such as shrimp, clams, and other meaty offerings to maintain its health and coloration.
Behind the name
The scientific name Cheilinus undulatus derives from the Greek word 'cheilos,' meaning 'lip,' referring to its distinctive thick lips, and 'undulatus,' meaning 'wavy,' which describes the undulating patterns on its body.
Plan your tank
Check the numbers before you buy: tank volume, salinity, salt mix, water changes, and your ongoing care routine.
Keeping Napoleon Wrasse?
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