Dragonfin Tetra

The dragonfin tetra is recognized by the males' extraordinarily large dorsal and anal fins that open like sails. The body is silvery with a faint blue sheen. Because it comes from subtropical South America, it adapts well to cool water. The species breeds by internal fertilization: the male fertilizes the female, and the female later deposits her eggs on plants.

• At least 100 liters for a group of 6–10; a long tank should be preferred.
• 18–24°C; it can live in unheated rooms. pH 6–7.5.
• Open swimming space in the upper layer, plants along the edges.
• It can jump; a lid is required.

Omnivorous. Flakes and floating granules, frozen mosquito larvae, brine shrimp and daphnia are suitable.

A peaceful and active species; males display to each other and to females by spreading their fins. Its long fins become a target for fin-nipping species.

Good companions: peaceful species suited to cool water: flame tetras, bloodfin tetras, White Cloud Mountain minnows, danios, corydoras that like cool water.

Avoid: fin nippers (tiger barbs, serpae tetras), large predators, species that need warm water such as discus.