Hyphessobrycon Rosaceus

Datasheet

General Description

The Rosy Tetra (Hyphessobrycon Rosaceus) is a species that closely resembles other tetras in the Hyphessobrycon genus, particularly H. bentosi. Distinguishing features include the absence of a dark marking behind the operculum present in H. bentosi. Taxonomically, this species falls under the Incertae Sedis classification along with other Hyphessobrycon species awaiting revision. Typically reaching a maximum size of 4.0cm, it is commonly found in forested areas of river systems in Guyana, Suriname, and Brazil, with captive-bred individuals largely originating from commercial farms in Eastern Europe.

Aquarium Setup

For optimal care, a minimum tank size of 70 liters is recommended along with a group of at least 6 individuals, ideally 10 or more, due to their shoaling nature. Rosy Tetras tend to thrive in acidic water conditions and can be housed alongside compatible tankmates such as South American species, small rasboras, barbs, and dwarf cichlids. Habitat replication involves river sand substrate, driftwood, dried leaves, and dim lighting to mimic natural biotopes. Alternatively, they adapt well to heavily planted setups but may lose coloration in simpler tanks.

Behaviour

Known for their peaceful temperament, Rosy Tetras prefer environments with less aggressive or much larger tankmates. They exhibit shoaling behavior and showcase vibrant fin displays, especially when kept in groups of their own kind.

Feeding and Diet

In their natural habitat, Rosy Tetras feed on small invertebrates, displaying an unfussy eating habit in captivity. A diverse diet comprising dried flakes, granules, small live, and frozen foods is recommended to ensure balanced nutrition.

Reproduction & Dimorphism

Breeding these tetras involves setting up a separate tank with soft, acidic water conditions, dim lighting, and appropriate substrates for egg deposition. They can be spawned in groups or pairs, with adults needing removal to prevent egg consumption. Males develop elongated dorsal and anal fins and exhibit more vibrant colors than females as they mature.

Habitat and Distribution

Mainly inhabiting forested areas near sluggish tributaries of rivers in Guyana, Suriname, and Brazil, Rosy Tetras thrive in acidic, tannin-stained waters. Their distribution extends to river systems like Rio Essequibo, Rio Corantijn, and Rio Suriname, with many individuals in the trade originating from captive breeding facilities.

Note: For full details, refer to the respective table.