Scissortail Dartfish Care Guide
Ptereleotris evides · Saltwater Dartfish
What Scissortail Dartfish look like
The Scissortail Dartfish (Ptereleotris evides) exhibits a streamlined, elongated body that can reach a maximum adult size of approximately 4 inches (10 cm). Its coloration is characterized by a translucent body with a striking gradient of pale blue to yellow, accentuated by a prominent black stripe that runs laterally from the eye to the base of the caudal fin. The dorsal fin is notably elongated and forked, resembling scissors, which contributes to its common name. Sexual dimorphism is subtle; males tend to exhibit slightly more vibrant coloration and larger dorsal fins compared to females. Defensive adaptations include rapid darting movements and the ability to quickly retreat into crevices or coral formations to evade predators. The species features a unique lateral line system that aids in detecting water movement, enhancing its ability to navigate and avoid threats in its reef habitat.
Behavior & temperament
Scissortail Dartfish are generally social and are often found in small groups, exhibiting a loose hierarchy. They occupy the mid to upper water column, where they can be observed darting among coral structures. Breeding behavior involves males displaying courtship rituals that include fin displays and swimming in circles around females. Their temperament is typically peaceful, although they can exhibit territoriality, especially during breeding. They are known to be skittish and will quickly retreat to their hiding spots when startled, making them less suitable for aggressive tank mates.
Diet & feeding
In the wild, Scissortail Dartfish primarily feed on zooplankton and small crustaceans. In captivity, they thrive on a diet of high-quality frozen or live foods such as brine shrimp and mysis shrimp, supplemented with finely crushed flakes or pellets.
Behind the name
The genus name 'Ptereleotris' is derived from the Greek words 'pteron' meaning 'fin' and 'eleotris' referring to a type of fish, while the species name 'evides' is derived from Latin, meaning 'to see clearly' or 'visible', likely referencing its transparent body.
Plan your tank
Check the numbers before you buy: tank volume, salinity, salt mix, water changes, and your ongoing care routine.
Keeping Scissortail Dartfish?
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