
Source: Wikimedia Commons
Epalzeorhynchos kalopterum
A bottom-dwelling cyprinid with a broad black lateral band edged above in gold over a golden-brown body, and white fin tips. It grows territorial and chases its own kind and similarly shaped fish.
Epalzeorhynchos kalopterum ranges from the southern Malay Peninsula through Borneo, Java and Sumatra. FishBase records a maximum of 16cm TL, pH 6.5-7.0, 5-8 dH and 24-26C, notes that it is commonly collected from the undersides of floating objects such as boats and floating houses, and lists a diet of worms, crustaceans, insects and plant matter. It advises keeping it singly because adults are territorial, and gives a minimum tank length of 100cm. Seriously Fish gives 160mm SL, 20-26C, pH 6.0-7.5, 2-12 dGH and a 120 x 45cm base of about 243 litres, with a potential age beyond fifteen years. A broad black band edged above in gold runs along the golden-brown flank, and the fins are tipped white. It is often confused with the similarly shaped Siamese flying fox. The IUCN rates it Least Concern and it is not listed by CITES.
Source: Wikipedia (CC BY-SA 4.0)
The Flying Fox lives Over 15 years.
The Flying Fox grows to Up to 16cm TL.
The ideal temperature for the Flying Fox is 20〜26℃.
Origin
Southeast Asia (southern Malay Peninsula, Borneo, Java and Sumatra)
Lifespan
Over 15 years
Sources: FishBase / Seriously Fish
Edited & verified by: BreederDirect editorial team
The taxonomic, regulatory, and husbandry data on this page are compiled and verified against the authoritative primary sources below.
Sources: CITES Appendices (species not listed) / IUCN Red List
Regulations may change. Always verify the latest information with the relevant authorities.
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Size
Up to 16cm TL
Temperature
20〜26℃
Sinking dried foods, frozen foods and vegetable matter
Seriously Fish suggests a 120 x 45cm base of about 243 litres and FishBase a minimum tank length of 100cm. Driftwood and rock that give cover and break sight lines help it settle. Prioritise floor area.
Seriously Fish gives 20-26C, pH 6.0-7.5 and 2-12 dGH, while FishBase records pH 6.5-7.0, 5-8 dH and 24-26C. It prefers soft, acidic to neutral water and a mature, settled tank.
Juveniles hide, but territoriality grows with age and it harries similarly shaped fish. Do not keep it with its own kind or congeners. Loaches of Chromobotia, Botia, Syncrossus and Yasuhikotakia are reported to be left alone.
An omnivore taking worms, crustaceans, insects and plant matter. Use sinking dried food as the staple with frozen bloodworm, Artemia and a plant-based food. Its value as an algae grazer is limited.
Adults fight hard, so home breeding is almost unreported, and traded fish come mainly from Southeast Asian farms.
It is easily confused with the similarly shaped Siamese flying fox of the genus Crossocheilus, and buying this species for algae control will disappoint. It can live beyond fifteen years. The IUCN rates it Least Concern and it is not listed by CITES.
Intermediate. This is an intermediate-level species. Some prior experience and knowledge of environmental management are recommended.
The ideal temperature for Flying Fox is 20〜26℃. Avoid sudden temperature changes and maintain a stable environment.
The average lifespan of Flying Fox is Over 15 years. With proper care and nutrition, they can live a long and healthy life.
Flying Fox typically reaches Up to 16cm TL as an adult. Size may vary depending on care conditions and individual genetics.
Flying Fox feeds on: Sinking dried foods, frozen foods and vegetable matter. Aim for a balanced diet with appropriate feeding frequency.
The price of Flying Fox varies significantly depending on morph, size, and lineage. Check our market price page for the latest pricing information.
Last updated: September 16, 2026