All FishesBagridaeTachysurus

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Scientific Name Tachysurus koreanus  (Uchida, 1990)
Common Name Korean Bullhead
Type Locality Namwôn-shi, Sômjin River, Korea.
Synonym(s) Pseudobagrus koreanus
Hop to next section Species Information
Size 200mm or 7.9" SL. Find near, nearer or same sized spp.
Identification Tachysurus can be identified by an extrascapular without a laterosensory canal, and a pterotic with a broad lateral laminar expansion. It is among the most speciose catfish groups in East Asia and its members inhabit habitats ranging from fast-flowing hillstreams to large rivers.

Variable color, from yellowish brown to dark brown, sometimes mottled. Behind the head there is always a single, light-colored band.
Sexing Same as for genus
Hop to next section Habitat Information
Distribution Asia: Endemic to Korea. Found in rapids in the mid- to large-sized waterways along the west coast of Korea.
IUCN Red List Category Not Evaluated
pH 6.5 - 7.5
Temperature 15.0-23.0°C or 59-73.4°F (Show species within this range)
Other Parameters Requires a strong current to be happy. It can be kept at lower temperatures than listed for a short period of time
Hop to next section Husbandry Information
Feeding Prefers live food but will adapt to frozen food. It is especially fond of shrimp. It will also eat small fish, bloodworms and most aquatic invertebrates. Slow at finding food, it is best to feed this nocturnal fish after turning off the lights, especially if housed with other, faster species.
Furniture Needs numerous hiding places. Large stones should be placed in the tank arranged in a way to make crevices and caves. The fish will spend much of the day hiding among these, coming out at night to feed. The substrate should be sand or gravel. Plants do not often occur in the fast flowing water where this fish is found
Compatibility Peaceful
Suggested Tankmates Peaceful, although it will eat any tankmate that will fit into its mouth. The fish it is housed with should be able to withstand strong currents. They also should not be fish that eat too quickly as this fish is slow at finding food. In nature, it is found with Zacco koreanus and Zacco platypus and may share a cave with Liobagrus species.
Breeding Occurs from May to June in nature. Little is known of its breeding habits.
Breeding Reports There is no breeding report.
Hop to next section Further Information
Reference Korean Journal of Ichthyology v. 2 (no. 2), pp 124, Figs. 3B, 6
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Last Update 2021 Jul 14 00:50 (species record created: 2013 Sep 14 12:50)