The Arowana Tetra, scientifically known as Gnathocharax steindachneri, is a unique and visually striking species of freshwater fish native to the Amazon Basin in South America. This species is notable for its unusual body shape and striking appearance, which make it a fascinating addition to well-maintained community aquariums.

Arowana Tetras are characterized by their elongated, somewhat flattened bodies and a distinctive, upturned mouth that resembles that of the much larger Arowana fish, giving them their common name. Their bodies typically display a shimmering silver or metallic hue with a slight bluish or greenish sheen. The fins are generally transparent, and their large, prominent eyes add to their distinctive look.

In captivity, Arowana Tetras thrive in aquariums that closely mimic their natural habitat. A tank setup should include a soft, sandy or fine gravel substrate and plenty of live plants, such as Java moss, Anubias, and floating plants, which provide cover and create a comfortable environment. Adding driftwood and rocks can enhance the natural look of the tank and provide additional hiding spots.

Water conditions should be slightly acidic to neutral, with moderate hardness. Maintaining stable water parameters through regular water changes and efficient filtration is crucial for the health and well-being of Arowana Tetras. They are relatively hardy fish but do best in clean, well-oxygenated water with a gentle to moderate current.

Arowana Tetras are schooling fish that should be kept in groups of at least six or more to promote their well-being and natural schooling behavior. Keeping them in a school not only reduces stress but also enhances their vibrant colors and active swimming patterns. They are generally peaceful and can be housed with other small, non-aggressive fish, making them ideal for community tanks.

Their diet should be varied to ensure they receive all necessary nutrients. Arowana Tetras are omnivorous and will readily accept high-quality flake foods, small pellets, and live or frozen foods such as brine shrimp, daphnia, and bloodworms. Providing a mix of these foods will help maintain their health, vibrant colors, and energetic behavior.

Breeding Arowana Tetras in captivity can be challenging due to their specific environmental needs. They are egg scatterers, typically laying their eggs among fine-leaved plants. To encourage breeding, maintain optimal water conditions with slightly warmer water and provide plenty of fine-leaved plants or spawning mops. Once spawning occurs, it is advisable to remove the adults from the breeding tank to prevent them from eating the eggs. The eggs usually hatch within a few days, and the fry can be fed with infusoria or finely crushed flake food until they are large enough to accept standard fare.

Overall, the Arowana Tetra is an excellent choice for aquarists looking for a unique and visually appealing species. Their striking appearance, peaceful nature, and active behavior make them a delightful addition to any well-maintained aquarium. With proper care, they can thrive and bring a touch of elegance and lively activity to your aquatic setup.