About the Sailfin Tetra
Name: Sailfin Tetra (Crenuchus spilurus)
Max Size: Up to 2.5 inches
Water Parameters: pH 6.0-7.5, temperature 72-79Β°F, hardness 2-15 dGH
Diet: Omnivorous - enjoys a varied diet including high-quality flakes, small pellets, and live or frozen foods such as daphnia, brine shrimp, and bloodworms.
Temperament: Generally peaceful but may exhibit mild territorial behavior, especially among males. Best kept in groups of 6 or more to encourage natural schooling behavior and reduce aggression.
Tank Setup: Provide a well-planted tank with plenty of open swimming space and areas with dense vegetation or driftwood for hiding. A dark substrate enhances their colors, and gentle water flow mimics their natural river habitats.
Compatibility: Sailfin Tetras are peaceful and do well in community tanks with similarly sized, non-aggressive fish such as rasboras, other tetras, and corydoras. Avoid housing them with overly aggressive or fin-nipping species.
Behavior: Active and social, Sailfin Tetras are mid-level swimmers that often form loose schools. Males may display their impressive dorsal fins during courtship or territorial displays, making them a beautiful and dynamic addition to aquariums.
Fun Fact: Sailfin Tetras are named for their prominent, sail-like dorsal fins, particularly noticeable in males. They are native to South American blackwater streams, and their subtle iridescence and unique fin structure make them a favorite among aquarists who appreciate understated beauty.