Cat-eLog Right Arrow Siluridae Right Arrow Phalacronotus

  • Phalacronotus bleekeri
Jump to next section Cat-eLog Data Sheet
Scientific Name Phalacronotus bleekeri  (Günther, 1864)
Common Name Bleeker's Sheatfish
Type Locality Thailand.
Synonym(s) Cryptopterus bleekeri, Kryptopterus bleekeri, Micronema bleekeri
Pronunciation blee kehr aye
Etymology Named after Pieter Bleeker, who contributed much to the knowledge of Southeast Asian ichthyology.
Jump to next section Species Information
Size 600mm or 23.6" SL. Find near, nearer or same sized spp.
Identification Head 4 2/3 times in SL; vomerine teeth in smoothly curved band; short maxillary barbel not extending beyond jaw; mandibular barbels shorter than eye width; caudal peduncle lacking dark blotch at its base. Body depth 5.1-5.9 times in SL. Anal fin rays 77-85.

It is not easy to distinguish the species of Phalacronotus reliably all the time.
Sexing Males are more slender and have strong serrations on the posterior edge of the pectoral spine (females lack these serrations).
Jump to next section Habitat Information
Distribution Mainland Southeast Asia.
Thailand Waters (click on these areas to find other species found there)
Cambodia waters (click on these areas to find other species found there)
Pacific, Malaysia 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 2011.
pH 6.0 - 7.0
Temperature 22.0-27.0°C or 71.6-80.6°F (Show species within this range)
Jump to next section Husbandry Information
Feeding Readily feeds on live/frozen foods and other prepared foods such as pellets. Will also eat small fishes/shrimps.
Furniture This fish is fairly active and needs open spaces to swim in. Provide plenty of vegetation for it to hide in during the day.
Compatibility A relatively peaceful species that is compatible with most larger fish. Not safe with small fishes.
Breeding Undertakes lateral migrations from the Mekong River into smaller tributaries and into the floodplains at the onset of the flood season, returning to the main river channel when the water starts to recede at the beginning of the dry season.

Migrations are triggered by the first rainfall at the end of the dry season, as well as water level changes. Lunar cycle affects also the movements. Returns to the river from the floodplain and tributaries on, or immediately before, the full moon

Eggs are observed in May-September.

Not reported in aquaria.
Breeding Reports There is no breeding report.
Jump to next section Further Information
Reference Catalogue of the fishes in the British Museum v. 5, pp 44.
Registered Keepers Keeping this species? Why not .
There are 3 registered keepers, view all "my cats" data.
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There is but a single record of this fish being seen, view it.
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Last Update 2019 Sep 25 13:03 (species record created: 2005 May 04 00:00)