Arowana Tetra Care Guide
Gnathocharax steindachneri · Freshwater Fish
What Arowana Tetra look like
Gnathocharax steindachneri, commonly known as the Arowana Tetra, exhibits a medium to large size, reaching a maximum adult length of approximately 4 to 5 inches. The body is laterally compressed and characterized by a silvery sheen, which allows it to blend into its aquatic environment. Notably, the Arowana Tetra possesses a disproportionately large and powerful jaw, a unique feature among tetras, which enhances its predatory capabilities. The head is robust and larger in proportion to the body, contributing to its aggressive feeding behavior. The scales are large and reflective, further accentuating its striking appearance. This species lacks significant sexual dimorphism, although males may exhibit slightly more vibrant coloration during breeding. Defensive adaptations include a streamlined body shape that aids in swift movement through the water, allowing it to evade potential predators.
Behavior & temperament
The Arowana Tetra is primarily a solitary and aggressive species, often displaying territorial behavior, particularly during breeding periods. It tends to inhabit the mid to upper water column, showcasing its predatory nature as it hunts for smaller fish and invertebrates. This species is not an obligate schooler, and while it may tolerate the presence of conspecifics, it often exhibits dominance over smaller or less aggressive tank mates. Breeding behavior involves egg scattering, where females release eggs in open water, which are then fertilized by males. The temperament of the Arowana Tetra is generally assertive, making it unsuitable for peaceful community tanks.
Diet & feeding
In the wild, the Arowana Tetra is an omnivorous micropredator, feeding on small fish, insects, and crustaceans. In captivity, it requires a varied diet that includes high-quality pellets, live or frozen foods such as brine shrimp and daphnia, and occasional vegetable matter to ensure optimal health.
Behind the name
Gnathocharax (from Greek 'gnathos' meaning jaw and 'charax' meaning a type of fish); steindachneri (named in honor of the Austrian ichthyologist Franz Steindachner).
Plan your tank
Check the numbers before you buy: tank volume, a stocking plan, cycle progress, water changes, and your ongoing care routine.
Keeping Arowana Tetra?
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