Red Line Tetra Care Guide
Hyphessobrycon amapaensis · Freshwater Fish
What Red Line Tetra look like
Hyphessobrycon amapaensis, commonly known as the Red Line Tetra, exhibits a laterally compressed, fusiform body that typically reaches a maximum adult size of approximately 2 inches (5 cm). The species is characterized by a striking silver body adorned with a vivid red horizontal stripe that runs from the head to the base of the caudal fin, providing a stark contrast against its shimmering scales. Sexual dimorphism is subtly present, with females generally appearing fuller-bodied and more rounded, particularly when gravid, while males tend to be slightly more elongated and possess more pronounced coloration. Defensive adaptations include a streamlined body shape that facilitates quick bursts of speed to evade predators. Unique morphological features include a well-developed adipose fin and a prominent lateral line system, which aids in detecting vibrations and movements in the water column, enhancing their ability to navigate their environment and avoid threats.
Behavior & temperament
The Red Line Tetra is a social species that thrives in small to medium-sized schools, exhibiting a strong tendency to form cohesive groups within their natural habitat. They are primarily pelagic, dwelling in the mid to upper water column of slow-moving rivers and streams in South America. Their breeding behavior is characterized as an egg scatterer, where females release eggs among vegetation, which are then fertilized by males. This species displays a generally peaceful temperament, making them suitable for community aquariums, although they can exhibit mild territoriality during breeding periods. Their social hierarchy is relatively egalitarian, with no strict dominance observed within schools, allowing for a dynamic and interactive group behavior.
Diet & feeding
In the wild, the Red Line Tetra is an omnivore, feeding on a varied diet that includes small invertebrates, plant matter, and detritus. In captivity, they thrive on a balanced diet that includes high-quality flake food, micro-pellets, and occasional live or frozen foods such as brine shrimp and daphnia to ensure optimal health and coloration.
Behind the name
Hyphessobrycon (from Greek 'hyphessos' meaning 'to be under' and 'brycon' meaning 'a fish'); amapaensis (derived from 'Amapá', the Brazilian state where the species is found, indicating its geographical origin).
Plan your tank
Check the numbers before you buy: tank volume, a stocking plan, cycle progress, water changes, and your ongoing care routine.
Keeping Red Line Tetra?
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