Four Line Wrasse Care Guide
Pseudocheilinus tetrataenia · Saltwater Wrasse
What Four Line Wrasse look like
The Four Line Wrasse (Pseudocheilinus tetrataenia) exhibits a streamlined, elongated body that can reach a maximum adult size of approximately 4 inches (10 cm). Its coloration is striking, characterized by four distinct horizontal lines that run from the head to the tail, with a vibrant blue-green body that transitions to a yellowish hue towards the belly. Sexual dimorphism is subtle, with males typically displaying more intense coloration and slightly larger fins compared to females. Defensive adaptations include a robust lateral line system that enhances sensory perception in its environment, allowing it to detect predators and prey effectively. The dentition is comprised of small, sharp teeth adapted for feeding on small invertebrates, while the caudal fin is forked, providing agile swimming capabilities.
Behavior & temperament
The Four Line Wrasse is a diurnal species known for its active and inquisitive nature. It typically occupies the mid to upper levels of the reef, displaying a social hierarchy where dominant individuals establish territories. Breeding behavior involves elaborate courtship displays, where males exhibit vibrant colors and engage in rapid swimming patterns to attract females. This species is generally considered semi-aggressive, especially towards similar-sized wrasses, and may exhibit territorial behavior when breeding. Its feeding behavior is opportunistic, often seen foraging among rock crevices and coral structures for small crustaceans and other invertebrates.
Diet & feeding
In the wild, the Four Line Wrasse primarily feeds on small crustaceans and zooplankton. In captivity, it requires a varied diet that includes high-quality frozen or live foods such as brine shrimp, mysis shrimp, and finely chopped seafood.
Behind the name
The genus name 'Pseudocheilinus' derives from the Greek 'pseudo' meaning 'false' and 'cheilinus' referring to a type of wrasse, while the species name 'tetrataenia' comes from the Greek 'tetra' meaning 'four' and 'taenia' meaning 'band' or 'stripe', referencing its distinctive four stripes.
Plan your tank
Check the numbers before you buy: tank volume, salinity, salt mix, water changes, and your ongoing care routine.
Keeping Four Line Wrasse?
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