Species description

Care, breeding and tankmates

Fish profile

Temperament

Semi-aggressive

The Redfin Barb is a peaceful but highly active and sometimes boisterous fish. Their constant, rapid movement is their most defining behavioral trait. When kept in proper numbers, they direct their energy towards each other in harmless displays. They are excellent dither fish that can encourage shy species to come out of hiding.

Diet

Omnivore

In the wild, they are opportunistic omnivores feeding on insects, plant matter, and small invertebrates. In the aquarium, they are voracious eaters that will accept almost any high-quality flake or granular food. Their diet should be varied with live or frozen foods like bloodworms and daphnia, as well as blanched vegetables. Providing a balanced diet enhances their red fin coloration and overall vitality.

Sex ratio

School

As a schooling fish, they must be kept in groups of at least six, though ten or more is highly preferable. In larger groups, a mix of males and females diffuses any minor squabbling and encourages the males to display their best colors. Keeping them in too small a group can lead to stress and fin-nipping behaviors directed at other tankmates. Males are generally slimmer and more intensely colored than females.

Feeding frequency

Twice daily

Feed them small amounts two or three times a day. They are enthusiastic eaters that consume food greedily at all levels of the water column. Ensure that food is spread out so that less aggressive fish also have a chance to eat. Fasting them for one day a week can aid digestion and mimic natural food scarcity.

Bioload

The Redfin Barb produces a moderate bioload due to its active nature and healthy appetite. They are fast swimmers that constantly forage, requiring a highly efficient biological filtration system. Regular water changes are necessary to keep nitrate levels in check, as they are sensitive to declining water quality. A mature tank with excellent filtration is key to their long-term health.

Flow

Stagnant

They originate from flowing rivers and streams in Southeast Asia and thrive in moderate to high water flow. Strong currents provide the oxygenation and physical exercise these energetic swimmers require. A powerhead or a strong filter return will encourage their natural schooling behavior against the current. However, there should always be resting spots provided by dense vegetation or driftwood.

Reproduction

Oviparous

They are egg-scatterers that exhibit no parental care and will eagerly consume their own eggs. Breeding requires a separate tank with a mesh floor or dense spawning mops where the eggs can fall out of reach. Spawning is triggered by large, cool water changes and feeding live foods. The fry are tiny and require infusoria followed by newly hatched brine shrimp as they grow.

Compatibility & tankmates

They are generally peaceful schooling fish but their fast, active swimming can intimidate shy or slow-moving species. They make great companions for other robust cyprinids, large tetras, and peaceful bottom dwellers like Corydoras or loaches. Long-finned or slow fish like Angelfish may occasionally be nipped if the barbs are kept in too small a group. Keep them with fish of similar size and energy levels.

Tank level

Middle/Bottom

They are primarily mid-water to upper-level swimmers that utilize open spaces to shoal. They are constantly on the move, darting back and forth across the length of the aquarium. They appreciate tanks with a long footprint to accommodate their active lifestyle. While they need open swimming space, they also appreciate heavily planted areas along the margins to retreat into.