The Nego Dagua Tetra, scientifically known as Hyphessobrycon negodagua, is a lesser-known yet charming species of freshwater fish native to Brazil. Belonging to the large family of characins, this tetra is a delightful addition to the aquarium due to its subtle beauty and peaceful nature.

Nego Dagua Tetras are relatively small and display a delicate silver body with a faint iridescent sheen that catches the light as they move. A distinguishing feature is a darker longitudinal stripe that runs from the gills to the base of the tail, enhancing their sleek appearance. Like many tetras, they have a somewhat translucent body, which allows them to blend easily into their environment—a natural defense mechanism against predators.

In captivity, Nego Dagua Tetras thrive in a community setting. They are schooling fish and should be kept in groups of at least six or more to ensure their well-being and to exhibit natural behaviors. A school of these tetras flitting through the water adds a dynamic element to any tank.

The ideal aquarium setup for Nego Dagua Tetras includes plenty of plants and subdued lighting to mimic the shaded rivers and streams of their native habitat. They appreciate a variety of hiding spots, which can be provided through dense plantings, driftwood, and other aquarium decorations. The water should be kept clean and stable, with conditions that reflect a tropical freshwater environment.

Diet-wise, Nego Dagua Tetras are not picky eaters and will generally accept most typical aquarium foods. A balanced diet for these tetras includes high-quality flake food supplemented with small live or frozen foods, such as brine shrimp or daphnia. These additions are not only nutritious but also encourage the tetras' natural foraging behaviors.

Breeding Nego Dagua Tetras in captivity can be achieved with some effort. They are egg scatterers, spawning among fine-leaved plants. To encourage breeding, the water should be soft and slightly acidic. Following spawning, it is advisable to remove the adults to prevent them from consuming their eggs and fry.

Overall, the Nego Dagua Tetra is an excellent choice for aquarists seeking to diversify their community tanks with a species that is both visually appealing and easy to care for. Their peaceful demeanor and schooling nature make them an attractive addition, creating a lively and visually engaging display in any aquarium.