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FishintermediateFreshwater

Fire Rasbora

Rasboroides vaterifloris

AnimaliaChordataActinopterygiiCypriniformesCyprinidae

📍 Sri Lanka (endemic)

Ask Finn

Jewel-like Sri Lankan endemic with an orange-to-red body and vivid fin colouring. Males are deeper red than females. Sensitive to water quality; thrives in soft, acidic, well-oxygenated planted tanks.

Size1.5"
Min Tank15g
School8+
peaceful
Zonemid

Care Guide

Diet

Fire Rasboras are omnivorous and require a varied diet of high-quality micro pellets, crushed flakes, and small frozen foods like brine shrimp and daphnia. Feed small portions once daily, offering only what they can consume in 2-3 minutes. Supplement occasionally with live microworms or infusoria to promote natural foraging behavior.

Behavior

Fire Rasboras are peaceful, active schooling fish that exhibit vibrant coloration and constant movement through mid-water zones. They are most confident and display their best colors when kept in groups of at least 8 individuals, where they establish a loose hierarchy without aggression. Males display deeper red coloration than females and may engage in gentle fin-flaring displays.

Breeding

Breeding Fire Rasboras in captivity is difficult and rarely achieved in home aquaria. They require pristine, acidic water (pH 5.5–6.0), dense vegetation for egg scattering, and specific conditioning with live foods. Fry are extremely small and require infusoria or liquid fry food; most hobbyists lack the specialized setup needed for successful breeding.

Common Diseases

Ich (White Spot Disease)

Symptoms

White spots on body and fins, rapid gill movement, lethargy, rubbing against objects

Treatment

Raise temperature gradually to 26–27°C, perform daily 25% water changes, use aquarium salt (1 tsp per 5 gallons) or ich-specific medication; treat for 10–14 days

Fin Rot

Symptoms

Frayed or deteriorating fins, discoloration at fin edges, lethargy

Treatment

Perform immediate 50% water change, improve water quality and aeration, treat with antibacterial medication; remove any sharp decorations

Bacterial Infection (from poor water quality)

Symptoms

Loss of color, clamped fins, open sores, cloudy eyes, rapid breathing

Treatment

Perform 50% water change immediately, test and correct pH and ammonia levels, use broad-spectrum antibiotic if severe; maintain pristine water conditions

Stress-Related Diseases

Symptoms

Faded coloration, hiding, loss of appetite, susceptibility to other infections

Treatment

Ensure minimum school size of 8, maintain stable soft acidic water (pH 5.5–7.0), reduce tank disturbances, provide dense vegetation for security

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Quick Facts

pH
5.5–7.0
diet
omnivore/micro food
maxSize
1.5 inches
minTankSize
15 gallons
temperature
72–79°F (22–26°C)

Temperature

72–79°F

22–26°C

Stats

Community tips0
Kept by0 hobbyists