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The Rosy Tetra (Hyphessobrycon rosaceus) is a small, characin fish native to South America, highly valued in the aquarium trade for its vibrant coloration and peaceful demeanor. It is characterized by a translucent, rosy-pink body, often with a distinct black spot on the dorsal fin and a white-tipped anal fin. Males typically exhibit more intense coloration and longer finnage, especially during breeding. This species is known for its schooling behavior, contributing to a dynamic and visually appealing display in community aquariums.
Características físicas
- Formato do corpo
- compressed
- Coloração
- Translucent rosy-pink to reddish body, often with a silvery sheen. Males are typically more intensely colored. A prominent black spot is present on the dorsal fin, and the anal fin often has a white anterior edge and a black submarginal band. Caudal fin is usually reddish.
- Tipo de escama
- cycloid
- Posição da boca
- terminal
- Características distintivas
- Rosy-pink body coloration, Black spot on the dorsal fin, White-tipped anal fin with a black submarginal band, Males develop elongated dorsal and anal fins, especially during breeding
- Nadadeira dorsal
- Typically has 10-11 rays, with a prominent black spot. Males often have an elongated dorsal fin.
- Nadadeira caudal
- Forked, reddish in color.
- Nadadeira peitoral
- Transparent to slightly reddish, small.
- Nadadeiras características
- Anal fin with 23-27 rays, often with a white anterior edge and a black submarginal band. Adipose fin present.
Dicas de identificação
Body Coloration
Look for the characteristic rosy-pink body color, which can vary in intensity depending on the fish's health, mood, and sex. Males are generally more vibrant.
Dorsal Fin Spot
A distinct black spot on the dorsal fin is a key identifier for Hyphessobrycon rosaceus.
Anal Fin Markings
Observe the anal fin for a white leading edge and a black submarginal band, which helps distinguish it from similar species.
Fin Elongation (Males)
Adult males often develop noticeably longer dorsal and anal fins, especially when in breeding condition.
Habitat
- Tipo de água
- freshwater
- Profundidade
- Typically found in shallow to moderate depths of slow-moving waters.
- Ambiente
- Inhabits clear to blackwater rivers, streams, and tributaries, often in areas with dense vegetation, submerged roots, and leaf litter. They prefer areas with moderate current and ample hiding spots.
- Distribuição geográfica
- Native to South America, specifically the Amazon River basin in Brazil and Guyana, including tributaries of the Essequibo River and the Rio Negro.
Informações sobre aquário
- Nível de cuidado: beginner
- Temperamento: peaceful
- Alimentação: omnivore
- Tamanho mínimo do aquário: 20 gallons (75 liters)
- Temperatura: 22-28 °C (72-82 °F)
- Nível de pH: 5.5-7.5
- Dureza da água: 2-15 dGH
- Compatibilidade: Excellent for community tanks with other peaceful, similarly sized fish such as other tetras, rasboras, corydoras, and small peaceful cichlids. Avoid housing with large, aggressive, or fin-nipping species.
- Requisitos especiais: Prefers a well-planted aquarium with open swimming spaces. A dark substrate and floating plants can help bring out their colors and provide a sense of security. They thrive in schools of 6 or more individuals.
Informações no ambiente natural
- Estado de conservação: least concern
- Sazonalidade: Breeds year-round in suitable conditions, with increased activity during rainy seasons in their natural habitat.
- Preço de mercado: Low to medium (typically $3-$7 USD per fish)
- Importância comercial: medium
- Sabor: Not typically consumed due to small size.
- Textura: Not typically consumed due to small size.
- Valor nutricional: Not typically consumed due to small size.
Fatos principais
Schooling Behaviorbehavior
Rosy Tetras are highly social fish and exhibit strong schooling behavior, which is crucial for their well-being and to display their natural behaviors and vibrant colors.
Sexual Dimorphisminteresting
Males are generally more intensely colored and develop longer, more elaborate dorsal and anal fins, especially during courtship, making them visually distinct from females.
Habitat Mimicrybehavior
In aquariums, providing a dark substrate and dense planting mimics their natural blackwater or clearwater habitats with leaf litter, which helps reduce stress and enhances their coloration.
Longevityinteresting
With proper care, Rosy Tetras can live for 3-5 years in an aquarium setting, offering a relatively long lifespan for a small characin.
Informações de segurança
Seguro- Nível de segurança: safe
- Venenoso: Não
- Comestibilidade: not recommended
- Observações de manuseio: No specific handling precautions are required beyond standard fish care. They are small and delicate, so handle gently with a fine-mesh net to avoid injury.
Espécies similares
Serpae Tetra
Hyphessobrycon eques
Serpae Tetras have a deeper, more compressed body, a more intense red coloration, and a distinct black comma-shaped spot behind the gill plate, which the Rosy Tetra lacks. The dorsal fin spot of the Serpae Tetra is typically less prominent or absent compared to the Rosy Tetra's.
Ornate Tetra
Hyphessobrycon bentosi
Ornate Tetras (often confused with Rosy Tetras) have a similar body shape and coloration but typically exhibit a more pronounced black blotch on the shoulder and a less distinct black spot on the dorsal fin. The anal fin markings can also differ subtly, with H. bentosi often having a more uniform red anal fin without the prominent white and black banding of H. rosaceus.
Phantom Tetra (Black Phantom Tetra)
Hyphessobrycon megalopterus
Black Phantom Tetras are characterized by a greyish body and a prominent black spot behind the gill plate, along with elongated black dorsal and anal fins in males. While they share the 'tetra' body plan, their coloration and fin markings are distinctly different from the Rosy Tetra.
Classificação científica
- Reino
- Animalia
- Filo
- Chordata
- Classe
- Actinopterygii
- Ordem
- Characiformes
- Família
- Characidae
- Gênero
- Hyphessobrycon
- Espécie
- Hyphessobrycon rosaceus
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