Gold Shoulder Rosy Tetra Care Guide
Hyphessobrycon paepkei · Freshwater Fish

What Gold Shoulder Rosy Tetra look like
Hyphessobrycon paepkei, commonly known as the Gold Shoulder Rosy Tetra, exhibits a laterally compressed, fusiform body shape, reaching a maximum adult size of approximately 2 inches (5 cm). The species displays sexual dimorphism, with males generally being more vibrantly colored and exhibiting a slightly more elongated body compared to the rounder females, especially during the breeding season. A distinctive feature of this tetra is the golden-yellow patch located on the shoulder area, contrasting beautifully with its rosy-pink body. The species possesses a well-developed lateral line system, which aids in detecting water movements, and has small, conical teeth suited for an omnivorous diet. The dorsal fin is typically triangular and set far back on the body, while the anal fin is elongated, contributing to its agile swimming capabilities. Defensive adaptations include a schooling behavior that provides safety in numbers, as well as the ability to quickly dart into cover when threatened.
Behavior & temperament
Gold Shoulder Rosy Tetras are inherently social fish, often found in small to medium-sized schools, which enhances their safety from predators and allows for complex social interactions. They primarily inhabit the mid to upper water column in their natural environments, where they exhibit a peaceful temperament, making them ideal for community aquariums. Breeding behavior is characterized by egg scattering, where females release eggs among fine-leaved plants or substrate, and males fertilize them externally. These tetras are generally non-aggressive, although males may display territorial behaviors during breeding periods. Their active swimming patterns and playful nature contribute to a dynamic aquarium environment.
Diet & feeding
In the wild, Gold Shoulder Rosy Tetras are omnivorous, feeding on a variety of small invertebrates, plant matter, and detritus. In captivity, they thrive on a balanced diet that includes high-quality flake food, supplemented with live or frozen foods such as brine shrimp and daphnia, as well as vegetable matter to ensure optimal health.
Behind the name
Hyphessobrycon (from Greek 'hyphē' meaning 'under' and 'sōbrycon' meaning 'to be sober' or 'calm'); 'paepkei' is derived from the name of the collector or locality associated with the species.
Plan your tank
Check the numbers before you buy: tank volume, a stocking plan, cycle progress, water changes, and your ongoing care routine.
Keeping Gold Shoulder Rosy Tetra?
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