Cat-eLog Right Arrow Bagridae Right Arrow Hemibagrus

Jump to next section Cat-eLog Data Sheet
Scientific NameHemibagrus wyckioides  (Chaux and Fang, 1949)
Common NamesAsian Red Tailed Catfish
Artc (Abbreviation), Asian Redfin Catfish, Common Baung, Pla Kayeng Thong (Thailand), Rødhalet Pigmalle (Denmark), Trey Khya (Cambodia)
Type LocalityCambodia
Synonym(s)Macrones wyckioides, Mystus wyckioides
PronunciationHEM ee BAG russ - wik oi dees
EtymologyFrom the Greek hemi- meaning half and bagrus, the catfish genus. 
Jump to next section Species Information
Size 950mm or 37.4" SL. Find near, nearer or same sized spp.
IdentificationMembers of the genus Hemibagrus are bagrid catfishes that can attain standard lengths of up to 800 mm and are found in large rivers throughout the Indian subcontinent,Southeast and East Asia. Members of this genus have depressed heads,rugose head shields not covered by skin,a slender occipital process and moderately long adipose fins.

Caudal fin whole or partially red-coloured. Hemibagrus aubentoni (Desoutter, 1975) is a junior synonym according to Ng and Rainbooth, 1999. This is the largest bagrid catfish in central Indochina reaching 950mm and 70-80 kg.
SexingMales possess a genital papilla just fore of the anal-fin.
Jump to next section Habitat Information
DistributionKnown from the Mekong and Chao Phraya basins.
Mekong (click on these areas to find other species found there)
Thailand Waters, Chao Praya (click on these areas to find other species found there)
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IUCN Red List StatusLeast Concern
pH6.0 - 7.6
Temperature19.0-29.0°C or 66.2-84.2°F (Show species within this range)
Other ParametersWater should be neutral and soft, although this fish is very adaptable. A good current is appreciated. Water changes should be large and frequent.
Jump to next section Husbandry Information
FeedingWill eat anything and everything. In nature the diet consists of fish, shrimp, and crab. Like all large predatory catfishes, it should only be fed every two to four days once it reaches 12 inches in length.
FurnitureNormally found over rocky substrates at irregular depths.
Large driftwood and rocks should be used to make a cave for the fish to hide in. All filters, heaters, etc should be behind a protective barrier as this fish can, and will, bite through a heater. This is a fish for someone with a very large tank that wants a true ''pet'' fish.
CompatibilityNot compatible with other fishes due to its nasty disposition. Many claim that H. wyckioides is the most aggressive freshwater fish in the world. Given this fish's ability to bite, it is not even safe with tank mates too large to swallow since it will simply take bites out them.
BreedingUnknown. Roberts (1993) claims that H. wyckioides does not migrate to spawn, but reproduces locally. It enters the flooded forest in the wet season (July-October).
Jump to next section Further Information
ReferencesBulletin du Muséum National d'Histoire Naturelle (Série 2) v. 21 (no. 2), pp 199, Fig. 3
Registered Keepers(1) arapaima (p: 2), (2) Trident2004, (3) Silurus, (4) eb14poppa1, (5) jordant, (6) Koltsix (k: 2), (7) Guanlong_wucaii, (8) pickles4601, (9) joe.juice13, (10) headbanger_jib, (11) Stackdeck, (12) Redtailrob, who also notes: "Super Agrressive. Very Nocturnal", (13) skin, (14) slayer5590, who also notes: "Traded away on 5/30/2017", (15) mr bulldog, (16) ARTC11122233, (17) TheFishGuy.

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Breeding ReportsNone.
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Last Update2014 Apr 09 13:27 (species record created: 2001 Apr 17 00:00)