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FishmediumFreshwater

Elegant Rasbora

Rasbora elegans

📍 Southeast Asia (Malay Peninsula, Sumatra, Borneo)

The Elegant Rasbora (Rasbora elegans) is a striking, larger rasbora species featuring a silvery body adorned with bold black blotches, making it a visually appealing addition to community aquariums. Native to the slow-moving, blackwater streams of Southeast Asia, it thrives in well-planted tanks with soft, acidic water. It is an active schooling fish that does best when kept in groups of six or more.

Size4"
Min Tank40g
School6+
peaceful
Zonemiddle

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Care Guide

Diet

Elegant Rasboras are omnivores that readily accept high-quality flake and micro-pellet foods as a staple diet. Supplement regularly with frozen or live foods such as bloodworms, daphnia, and brine shrimp to promote vibrant coloration and good health. Feed small amounts two to three times daily, only what they can consume within two minutes.

Behavior

Elegant Rasboras are active, peaceful schooling fish that spend most of their time in the middle water column. They are best kept in groups of six or more, as smaller numbers can cause stress and timid behavior. In a well-planted aquarium they will display natural shoaling behavior and become bolder and more confident.

Breeding

Breeding Elegant Rasboras in captivity is considered moderately challenging and is not commonly achieved by hobbyists. They are egg scatterers that prefer to spawn among fine-leaved plants in soft, slightly acidic water; conditioning with live foods can help trigger spawning. Eggs and fry are very small and vulnerable, and adults may consume eggs if not separated promptly.

Common Diseases

Ich (White Spot Disease)

Symptoms

White salt-like spots covering the body and fins, flashing against surfaces, lethargy, loss of appetite

Treatment

Raise temperature gradually to 28-30°C, treat with aquarium-safe ich medication such as malachite green or formalin-based products; perform regular water changes

Velvet Disease (Oodinium)

Symptoms

Gold or rust-colored dust-like coating on skin, rapid gill movement, flashing, lethargy

Treatment

Dim tank lighting, treat with copper-based medication or acriflavine; quarantine affected fish and perform water changes

Fin Rot

Symptoms

Fraying, discoloration, or deterioration of fins; ragged fin edges, sometimes with reddening at the base

Treatment

Improve water quality with frequent water changes, treat with antibacterial medication such as kanamycin or erythromycin; address any underlying stress factors

Dropsy

Symptoms

Swollen abdomen, raised or pinecone-like scales, lethargy, loss of appetite

Treatment

Isolate affected fish immediately; treat with broad-spectrum antibiotics such as kanamycin; improve water quality and reduce stress; prognosis is often poor if caught late

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Quick Facts

diet
Omnivore – accepts flakes, pellets, frozen/live foods such as bloodworms and daphnia
lifespan
5-8 years
max size
10 cm (4 in)
tank size
40 gallons minimum
temperament
peaceful

Water it likes

ph
5.5-7.0
ammonia
0 ppm
nitrate
<20 ppm
hardness
1-10 dGH
temperature
73–82°F (23–28°C)

Stats

Community tips0
Kept by0 hobbyists