Cat-eLog Right Arrow Siluridae Right Arrow Ompok

Down arrow Cat-eLog Data Sheet
Scientific Name Ompok siluroides  Lacepède, 1803
Common Name
Type Locality Java, Indonesia.
Synonym(s) Ompok krattensis, Wallago krattensis
Pronunciation Awm pok
Etymology The etymology of Ompok is unclear. It is believed to be a corruption of the Indonesian name for mid-sized silurid catfishes, limpok. 
Down arrow Species Information
Size 450mm or 17.7" SL. Find near, nearer or same sized spp.
Identification The catfish genus Ompok La Cepède, 1803, consists of medium-sized silurid fishes found in inland waters throughout South and Southeast Asia. The genus is traditionally diagnosed by the presence of a short dorsal fin with 4 rays, strongly forked caudal fin, subcutaneous eye that is set immediately posterior to the mouth rictus and two patches of palatal teeth (Weber & de Beaufort, 1913). Bornbusch (1995) showed that Ompok, as currently understood, is probably paraphyletic.

O. siluroides is often incorrectly identified as the Indian species, O. bimaculatus. O. siluroides is a Southeast Asian species which has a rounder head and a mottled brown colouration, while O. bimaculatus is silvery and has a sharper head.
Sexing Males are more slender and have strong serrations on the posterior edge of the pectoral spine (females lack these serrations).
Down arrow Habitat Information
Distribution Java, Indonesia.
Pacific, Greater Sunda Island Rivers, Java Waters (click on these areas to find other species found there)

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IUCN Red List Category Least Concern, range map and more is available on the IUCN species page. Last assessed 2019.
pH 6.4 - 7.4
Temperature 20.0-26.0°C or 68-78.8°F (Show species within this range)
Down arrow Husbandry Information
Feeding Readily feeds on live/frozen foods and other prepared foods such as pellets. Will also eat small fishes/shrimps.
Furniture Provide plenty of hiding spaces in the form of driftwood or PVC pipes. Prefers an area of open water when active. Current preferred.
Compatibility A relatively peaceful species that is compatible with most fish of equal size or larger. Not safe with small fishes.
Breeding Not known in the aquarium. O. bimaculatus has been bred using hormone injections in India.
Breeding Reports There is no breeding report.
Down arrow Further Information
Reference Histoire naturelle des poissons (Lacepède) v. 5, pp 49, 50, Pl. 1 (fig. 2).
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Last Update 2019 Oct 13 03:26 (species record created: 2005 Apr 17 00:00)