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Hyphessobrycon eques, commonly known as the Bloodfin Tetra or Serpae Tetra, is a small, characin fish native to the Amazon and Guaporé River basins in South America. It is characterized by its vibrant red coloration and a distinctive black, comma-shaped spot behind the gill plate. These fish are known for their schooling behavior and can exhibit fin-nipping tendencies, especially when kept in insufficient numbers or with long-finned tank mates. They are popular in the aquarium trade due to their striking appearance and active nature.
Características físicas
- Formato do corpo
- compressed
- Coloração
- The body is predominantly a vibrant, deep red to reddish-orange, often intensifying during breeding or when stressed. A prominent, vertically elongated, comma-shaped black spot is located just behind the operculum. The dorsal fin is typically black with a white tip, while the anal and caudal fins are reddish, often with black margins. Pectoral and pelvic fins are usually translucent red.
- Tipo de escama
- cycloid
- Posição da boca
- terminal
- Características distintivas
- Vibrant red body coloration, Distinctive black comma-shaped spot behind the gill plate, Black dorsal fin with a white tip
- Nadadeira dorsal
- Single, relatively tall, and triangular, typically black with a white distal margin.
- Nadadeira caudal
- Forked, reddish, often with black margins.
- Nadadeira peitoral
- Small, translucent, and reddish.
- Nadadeiras características
- The anal fin is relatively long, extending along a significant portion of the ventral side, and is reddish with a black anterior margin.
Dicas de identificação
Body Coloration
Look for the intense red to reddish-orange body color, which is a primary identifier.
Black Spot
Identify the distinct, vertically elongated, comma-shaped black spot located just behind the gill cover.
Dorsal Fin
Note the black dorsal fin with a prominent white tip, a key distinguishing feature.
Fin Shape and Color
Observe the reddish anal and caudal fins, often with black margins, and the overall compressed body shape.
Habitat
- Tipo de água
- freshwater
- Profundidade
- Typically found in shallow, slow-moving waters near the banks of rivers and tributaries.
- Ambiente
- Inhabits clear and blackwater streams, rivers, and floodplains, often associated with dense vegetation, submerged roots, and leaf litter. They prefer areas with moderate current and ample hiding spots.
- Distribuição geográfica
- Native to South America, primarily found in the Amazon River basin, particularly in the Guaporé and Madeira River systems in Brazil and Bolivia.
Informações sobre aquário
- Nível de cuidado: beginner
- Temperamento: semi-aggressive
- Alimentação: omnivore
- Tamanho mínimo do aquário: 60 liters (15 gallons)
- Temperatura: 22-28°C (72-82°F)
- Nível de pH: 5.5-7.5
- Dureza da água: 5-15 dGH
- Compatibilidade: Best kept in groups of 6 or more with other fast-moving, robust fish. Avoid keeping with slow-moving or long-finned species due to potential fin-nipping.
- Requisitos especiais: Requires a well-planted aquarium with open swimming spaces. Dim lighting and dark substrate can enhance their coloration. A tight-fitting lid is recommended as they can jump.
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
- 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
Hyphessobrycon eques is a highly social species that thrives in large schools. Keeping them in groups of six or more helps to mitigate their semi-aggressive tendencies and allows for more natural behavior.
Fin-Nipping Tendenciesbehavior
While generally peaceful within their own species, Serpae Tetras are known for their occasional fin-nipping behavior, especially towards slow-moving or long-finned tank mates. This behavior is often reduced in larger schools.
Color Intensityinteresting
The vibrant red coloration of Hyphessobrycon eques can intensify or fade depending on water quality, diet, stress levels, and breeding condition. Optimal conditions and a varied diet contribute to their best coloration.
Taxonomic Confusionevolution
Historically, Hyphessobrycon eques has been confused with Hyphessobrycon callistus and Hyphessobrycon serpae. Modern taxonomy generally recognizes H. eques as the valid species for the fish commonly known as Serpae Tetra.
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 not venomous and do not possess sharp spines that pose a significant threat.
Espécies similares
Red Phantom Tetra
Hyphessobrycon sweglesi
The Red Phantom Tetra has a more rounded black spot, often with a red halo, and lacks the prominent black and white dorsal fin of H. eques. Its body coloration is generally a more subdued red.
Black Phantom Tetra
Hyphessobrycon megalopterus
The Black Phantom Tetra is primarily grey to black with a distinct black spot and white-tipped fins, lacking the vibrant red body coloration of H. eques.
Rosy Tetra
Hyphessobrycon rosaceus
The Rosy Tetra has a more elongated body, a less intense red coloration, and typically has black markings on the dorsal and anal fins that differ in pattern from H. eques. It also lacks the distinct comma-shaped spot.
Classificação científica
- Reino
- Animalia
- Filo
- Chordata
- Classe
- Actinopterygii
- Ordem
- Characiformes
- Família
- Characidae
- Gênero
- Hyphessobrycon
- Espécie
- Hyphessobrycon eques
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