Wallago (Wallago Attu)

Malli (local name)

Huge mouth, formidable jaws, and band of conical teeth. Dorsal soft rays (total): 5; Anal soft rays: 77 – 97. Head broad, snout depressed. Body elongate, strongly compressed. Mouth very deeply cleft, its corner reaching far behind eyes. Teeth in jaws set in wide bands; vomerine teeth in two small patches. Barbels two pairs; maxillary barbels extending to anterior margin posterior of anal fin, mandibulary barbels to angle of mouth. Eyes small, with a free orbital margin. Dorsal fin small, anal fin very long. Mandibular barbel longer than pelvic fin; 24-30 gill rakers on the first arch . Eye in front of vertical through corner of mouth.

Grows up-to  It can reach 2.4 m (8 feet) total length
Where to Catch Found in large rivers and lakes
When to Catch Monsoon – July – August


Found in large rivers, lakes and tanks. A large, voracious and predatory catfish which thrives in heels with grassy margin ; mostly hides under holes in river banks and canals. Associated with deep, still or slow-flowing water with a mud or silt substrate. Sluggish and stays on muddy or silty bottom in search of food.


A pre-monsoon summer breeder, it is reported to migrate to smaller streams, canals and to the floodplain during the flood season. When the water level drops and the flood recedes, it moves larger tributaries, where it stays in deep pools until the next inundation period.

Angling Methods

Its common to find huge frogs and fishes inside its stomach, it prey on anything that moves also known to be catch on spinners and lures, fish found to be most active in monsoon season and takes cow lever and prawns.Interesting Note:It has been claimed that in some areas of Thailand the natives fear the species because of its believed habit of eating small ducks, dogs, and small children. It is thought the Tapah became this aggressive due to natives laying to rest their dead in the water.

Fight Characteristics


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