Longfin Rosy Barb

The Longfin Rosy Barb is a graceful and colorful variant of the Rosy Barb, featuring flowing fins and a vibrant pink to rosy-red body—especially intense in males during breeding. Its elongated fins give it an elegant, ornamental look compared to the standard form. Native to South Asia, this hardy and active fish is well-suited for community aquariums with proper planning.  

Longfin Rosy Barb (Pethia conchonius) – Complete Care Guide Description The Longfin Rosy Barb is a graceful and colorful variant of the Rosy Barb, featuring flowing fins and a vibrant pink to rosy-red body—especially intense in males during breeding. Its elongated fins give it an elegant, ornamental look compared to the standard form. Native to South Asia, this hardy and active fish is well-suited for community aquariums with proper planning. Water Parameters Adaptable but thrives in stable conditions: Temperature: 18–24°C (64–75°F) pH: 6.0–7.5 Hardness: 5–15 dGH Tank Size: Minimum 80–100 liters (20–25 gallons) Water Flow: Moderate Water Changes: 20–30% weekly Care & Maintenance Longfin Rosy Barbs are hardy and relatively easy to care for: Keep in groups of at least 6–8 to reduce aggression. Provide a planted tank with open swimming space. Maintain good filtration and stable water conditions. Feed a varied omnivorous diet: flakes, pellets, vegetables, and live/frozen foods (bloodworms, daphnia). Prefer slightly cooler water compared to many tropical fish. Avoid strong currents but ensure good oxygenation. Behaviour & Temperament Active and semi-peaceful fish. Males may display mild aggression or chasing behavior. Can show fin-nipping tendencies, especially in small groups. Constant swimmers, mostly in mid-levels. More peaceful when kept in larger groups. Compatibility Suitable for peaceful to semi-active community aquariums. Best with active, similarly sized fish. Avoid slow or long-finned species due to nipping. Suitable Tank Mates Other barbs (non-aggressive types) Danios Tetras (robust species) Rainbowfish Corydoras catfish Tank Mates to Avoid Long-finned fish (bettas, angelfish, gouramis) Very slow-moving species Small delicate fish Highly aggressive fish Pro Tips Keep in larger schools to minimize fin-nipping. Provide ample swimming space for active behavior. Use plants and décor to create natural zones. Maintain slightly cooler water for optimal health. Feed a balanced diet including plant matter. Monitor behavior and adjust group size if aggression appears. Summary The Longfin Rosy Barb is a beautiful, active, and hardy fish that adds elegance and movement to aquariums. With proper group size, suitable tank mates, and stable conditions, it thrives as a lively addition to community tanks.