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FishintermediateFreshwater

Rummy Nose Rasbora

Sawbwa resplendens

AnimaliaChordataActinopterygii

📍 Southeast Asia

Ask Finn

Despite its common name, this is not a true rasbora but a distinctive small cyprinid from Myanmar, with males displaying a bright red snout contrasting a steel-blue body and red caudal fin markings. It prefers soft, slightly acidic water in a well-planted nano tank and does best in groups of 8+, where its colors are most vivid.

Size1"
Min Tank10g
School8+
peaceful
Zonetop

Care Guide

Diet

Rummy Nose Rasboras are omnivorous and prefer small, high-quality foods. Feed them a varied diet of micro pellets, high-quality flake food, and small frozen foods like brine shrimp, daphnia, and bloodworms once daily in small portions. Supplement occasionally with blanched vegetables like spinach to support their vibrant coloration.

Behavior

These are active, schooling fish that display their best colors and behavior when kept in groups of 8 or more. They are peaceful and occupy the top to mid-water column, constantly foraging and interacting with their school. Males are more colorful and may display subtle dominance behaviors within the group, but aggression is minimal.

Breeding

Breeding in captivity is difficult and rarely achieved in home aquariums. They require very soft, acidic water (pH 5.5-6.5), dense vegetation, and pristine water conditions to trigger spawning. Fry are extremely small and require infusoria or liquid fry food; most hobbyists find breeding impractical without specialized setups.

Common Diseases

Ich (Ichthyophthirius multifiliis)

Symptoms

White spots on body and fins, flashing against objects, rapid breathing, lethargy

Treatment

Raise temperature gradually to 28-30°C, perform daily 25% water changes, use ich medication or salt treatment; maintain excellent water quality

Fin Rot

Symptoms

Frayed or deteriorating fin edges, discoloration at fin bases, lethargy

Treatment

Perform frequent water changes, improve water quality, use antibacterial medication if severe; ensure adequate filtration and avoid overcrowding

Bacterial Infection

Symptoms

Loss of color, torn fins, open sores, cloudy eyes, behavioral changes

Treatment

Isolate affected fish, perform daily water changes, use broad-spectrum antibiotic medication; maintain pristine water conditions

Stress-Related Decline

Symptoms

Fading coloration, loss of appetite, hiding, erratic swimming, reduced schooling behavior

Treatment

Ensure group size of 8+, maintain stable soft acidic water, provide dense vegetation, minimize tank disturbances, perform regular water changes

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Water it likes

ph
7.0–8.0
ammonia
0 ppm
nitrate
<20 ppm
temperature
68–75°F (20–24°C)

Stats

Community tips0
Kept by0 hobbyists