Pastel Lily Tetra Care Guide
Astyanax xavante · Freshwater Fish
What Pastel Lily Tetra look like
Astyanax xavante, commonly known as the Pastel Lily Tetra, exhibits a moderately deep, laterally compressed body that typically reaches a maximum adult size of approximately 2-3 inches (5-7.5 cm). The species displays a delicate silvery hue adorned with subtle pastel coloration, which can vary among individuals, providing a visually appealing appearance. Sexual dimorphism is subtle, with females generally appearing slightly rounder and fuller-bodied, especially when gravid. Notable morphological features include a well-defined lateral line that aids in hydrodynamic sensing, and a forked caudal fin that enhances swimming agility. The dentition is small and conical, adapted for an omnivorous diet, while the presence of an adipose fin contributes to its streamlined shape, aiding in maneuverability within its aquatic environment. Defensive adaptations are minimal, relying on schooling behavior and coloration for camouflage rather than physical defenses.
Behavior & temperament
The Pastel Lily Tetra is a social fish that thrives in small to medium-sized schools, displaying a strong inclination towards shoaling behavior. It predominantly occupies the mid-water column, where it exhibits a peaceful temperament, making it an excellent candidate for community tanks. Breeding behavior is characterized by egg scattering, with the species demonstrating a lack of parental care post-spawning. During breeding, males may exhibit increased aggression towards one another to establish dominance, but overall, they maintain a non-aggressive demeanor towards tank mates. This species is known for its active swimming patterns and inquisitive nature, often exploring its environment and interacting with both conspecifics and other species.
Diet & feeding
In the wild, the Pastel Lily Tetra is an omnivore, feeding on a varied diet that includes small invertebrates, plant matter, and detritus. In captivity, it thrives on a balanced diet of high-quality flake food, supplemented with live or frozen foods such as brine shrimp and daphnia, along with vegetable matter to ensure optimal health.
Behind the name
Astyanax (Greek origin; 'a name of a character in Homer's Iliad'); xavante (named after the Xavante people of Brazil, reflecting its geographical origin).
Plan your tank
Check the numbers before you buy: tank volume, a stocking plan, cycle progress, water changes, and your ongoing care routine.
Keeping Pastel Lily Tetra?
AquaLens identifies your fish and plants from a photo, tracks water chemistry, and flags health issues early — free on iOS and Android.
