Hyphessobrycon Erythrostigma

Datasheet

Behaviour: Bleeding Heart Tetras are generally peaceful fish, making them suitable for community aquariums. However, adult males can display territorial behavior, especially towards similar species. They are best kept with fish of similar size, such as characids, gasteropelecids, lebiasinids, smaller callichthyid or loricariid catfish, and medium-sized non-predatory cichlids. Maintaining a mixed-sex group of at least 8-10 individuals with other schooling fish can enhance their natural behavior and provide security. Male Bleeding Heart Tetras exhibit fascinating interactions, showcasing their best colors when competing for female attention or establishing a hierarchy.

Feeding and Diet: As opportunistic omnivores, Bleeding Heart Tetras feed on a varied diet. In their natural habitat, they consume fruit remains, aquatic insects, and larvae. In captivity, these fish readily accept small live and frozen foods like chironomid larvae (bloodworms), Daphnia, Artemia, as well as high-quality dried flakes and granules. Including plant or algal-based foods in their diet is recommended for optimal health. Additionally, submerged pieces of fresh fruit can be offered as a supplement, although they should be removed after a few hours.

Reproduction & Dimorphism: Bleeding Heart Tetras are egg scatterers and exhibit no parental care. Male Bleeding Heart Tetras grow larger and are more vibrantly colored than females. Adult males develop highly extended dorsal, pelvic, and anal fins, while females tend to have a rounder shape, especially when carrying eggs.

Habitat and Distribution: These tetras are native to the upper Amazon basin in the "Tres Fronteras" region where Brazil, Peru, and Colombia borders meet. They are commonly found in sluggish tributaries and forest lakes with submerged woody structures and overhanging vegetation. The water in their habitat is typically low in dissolved minerals, poorly buffered, and stained brown due to the presence of tannins and organic acids from decaying plant material. Bleeding Heart Tetras coexist with various fish species like Hyphessobrycon bentosi and Nannostomus eques in their natural habitat.

Aquarium Setup: To mimic their natural environment and promote vibrant colors, a well-furnished aquarium with live plants and dark substrate is recommended for Bleeding Heart Tetras. Setting up the tank with wood roots, branches, and leaf litter creates shaded areas and establishes a biotope-style feel. These tetras prefer dim lighting and floating vegetation. Regular water changes are essential as they are sensitive to organic pollutants, requiring spotless water conditions. Maintaining water hardness between 18-215 ppm, pH levels of 4.0-7.5, and temperatures ranging from 21-28°C (70-82°F) is crucial for their well-being.