
Source: Wikimedia Commons
Chitala ornata
A large knifefish from Southeast Asia. Dark ocelli line the rear of its silver-grey flanks, and it reaches 1m and 5kg. This predator swims both forwards and backwards by undulating its long anal fin.
Chitala ornata is a large featherback from the Mekong, Chao Phraya and Meklong basins, reaching 100cm and 5kg. It swims forwards or backwards by undulating the long anal fin running along its underside. Adults develop a row of dark ocelli on the rear flanks, the source of the common name. It tolerates a wide range of water, pH 6.0-8.0, 2-15 dGH and 20-28C, but its size is the obstacle: Seriously Fish considers it suitable only for public installations or the very largest specialist private aquaria. Feed strips of fish, whole prawns, mussels and large earthworms, never mammalian or avian meat. It is relatively peaceful with fishes too large to be prey but territorial towards conspecifics and similarly shaped species. In the wild males build nests of branches and leaves in flooded forest during the wet season and guard eggs and fry; captive breeding has not been reported.
Source: Wikipedia (CC BY-SA 4.0)
The Clown Knifefish lives 10-15 years.
The Clown Knifefish grows to Up to about 100cm and 5kg.
The ideal temperature for the Clown Knifefish is 20〜28℃.
Origin
Asia: Mekong basin (Laos, Thailand, Cambodia, Vietnam), Chao Phraya and Meklong basins
Lifespan
10-15 years
Sources: Seriously Fish: Chitala ornata / FishBase: Chitala ornata
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.
Accepted name: Chitala ornata Gray, 1831
Authority databases: FishBase
Nomenclature follows global taxonomic authority databases.
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 about 100cm and 5kg
Temperature
20〜28℃
Strips of fish, prawns, mussels and large earthworms
Because it reaches 1m, Seriously Fish rates it suitable only for public installations or the very largest specialist private aquaria. Secure a tank that can house it for life before acquiring one.
20-28C, pH 6.0-8.0 and 2-15 dGH. As a large predator with a heavy feeding load it needs powerful filtration and regular water changes.
Relatively peaceful with fishes too large to be considered prey, but territorial with conspecifics and similarly shaped species, especially where space is limited.
Strips of fish flesh, whole prawns, mussels, large earthworms and live river shrimp; juveniles take bloodworm and chopped prawn. Dried foods are accepted but should not be the staple.
Captive breeding is unreported. In nature males build nests of branches and leaves in flooded forest during the wet season and guard the eggs and fry. Sexual dimorphism is unreported.
Juveniles are sold at a few centimetres but end up at 1m and 5kg. Released fish cause ecological problems, so only acquire one if you can keep it for life.
Advanced. This is an advanced-level species. It requires specialized equipment and advanced husbandry skills with precise environmental control.
The ideal temperature for Clown Knifefish is 20〜28℃. Avoid sudden temperature changes and maintain a stable environment.
The average lifespan of Clown Knifefish is 10-15 years. With proper care and nutrition, they can live a long and healthy life.
Clown Knifefish typically reaches Up to about 100cm and 5kg as an adult. Size may vary depending on care conditions and individual genetics.
Clown Knifefish feeds on: Strips of fish, prawns, mussels and large earthworms. Aim for a balanced diet with appropriate feeding frequency.
The price of Clown Knifefish varies significantly depending on morph, size, and lineage. Check our market price page for the latest pricing information.
Last updated: September 17, 2026