Bleeding Heart Tetra

The Bleeding Heart Tetra (Hyphessobrycon erythrostigma) is one of the most distinctive and elegant freshwater aquarium fish. Native to the upper Amazon basin in Peru and Colombia, this species inhabits slow-moving rivers and flooded forest areas where the water is soft, slightly acidic, and rich in plant life. Its unique coloration and peaceful nature make it a highly desirable species for planted aquariums and natural aquascapes.

The most recognizable feature of the Bleeding Heart Tetra is the bright red spot located near the center of its body, which resembles a drop of blood and gives the fish its name. Their body is generally silvery to light pink, with a slightly translucent appearance that reflects aquarium lighting beautifully. The fins are semi-transparent, often with subtle black accents, while the dorsal fin can appear elongated and slightly darker. Mature specimens show the most intense coloration, especially when kept in optimal water conditions.

Bleeding Heart Tetras are slightly larger than many other tetra species and can grow up to 6–7 cm (about 2.5 inches) in length. Because of their size and active swimming behavior, they benefit from larger aquariums with plenty of open swimming space. Like most tetras, they are schooling fish and should be kept in groups of at least 6 individuals, although groups of 8–12 are ideal for natural behavior and reduced stress.

This species prefers stable water parameters similar to their natural Amazon habitat. Ideal conditions include temperatures between 24–28°C (75–82°F) and a pH range of 5.5–7.2. Soft to moderately soft water works best, and regular water changes help maintain their health and coloration. A well-maintained aquarium with stable conditions will allow them to display their full beauty and natural activity.

A planted aquarium environment suits Bleeding Heart Tetras perfectly. In the wild, they are found among submerged plants, roots, and driftwood that provide shade and shelter. Aquascapes with plants such as Amazon swords, Vallisneria, Cryptocoryne, Java fern, and floating plants help recreate this environment. Driftwood and darker substrates can enhance their coloration and make the red “heart” marking stand out even more.

Bleeding Heart Tetras are peaceful community fish and are compatible with many other calm species. Good tank mates include rasboras, other tetras, dwarf cichlids, Corydoras catfish, peaceful gouramis, and small plecos. Because of their calm temperament, they should not be kept with aggressive or very large fish that may intimidate them.

In terms of diet, Bleeding Heart Tetras are omnivores and relatively easy to feed. They accept high-quality flakes, micro pellets, and granules, but their health and coloration improve when their diet is supplemented with live or frozen foods such as brine shrimp, daphnia, and bloodworms. Offering a varied diet also encourages natural feeding behavior and supports overall vitality.

Breeding Bleeding Heart Tetras in captivity is possible but requires careful conditions. They are egg scatterers that prefer soft, slightly acidic water and dim lighting during spawning. A separate breeding tank with fine-leaved plants or spawning mops is often used to protect the eggs. Once spawning occurs, the adults should be removed since they may consume the eggs.

With their iconic red marking, graceful swimming style, and peaceful personality, Bleeding Heart Tetras make a beautiful centerpiece for larger tetra schools in planted aquariums. When kept in the right environment with stable water conditions and lush vegetation, they bring both elegance and movement to a freshwater aquascape.