Sareng Catfish aka Wallago Attu – Profile and Photos

The Sareng Catfish (Wallago Attu) is an extremely rare* and predatory catfish. They are also known as the Mulley, Latchi, and Tapah depending where in the world you are. The Sareng is native to southeast Asia. They can grow to 6′ long and 100lbs. It is believed they are capable of (and have according to some) eating small children. They are similar to a Goonch catfish in that they grow very large and have sharp teeth but are a completely different fish. The Sareng has a body more like a Wels Catfish with a sort of gaping mouth. It’s quite a scary looking fish, much more so than it’s river mate the Goonch if you ask me. Some folks have gotten these fish for Aquariums, it sounds crazy but it does happen on occasion. I do not suggest it nor do I condone keeping such large fish in captivity.

Scientific Name – Wallago Attu

Common Name – Sareng Catfish, Mulley, Latchi, Tapah

Size – 6′ Long – 100+lbs

Region of Origin – Southeast Asia

Temperament – Extremely Aggressive predatory catfish

Tank Terrors Comments – These guys are extremely rare*, so the odds of you ever seeing one are pretty slim. Not suggested for home Aquariums. I’ve read accounts of these fish knocking lids off tanks and biting owners/handlers fingers during feeding sessions, take that for what you will.

*These may not be as rare as I initially thought, despite being very hard to catch for anglers searching for a large specimen. It seems if you live in certain areas of the world they are commonly found for sale as food. I can only assume most of these are smaller juvenile fish and not the size of the monsters shown in the photos below. If you can provide photos of these fish in a market for sale we would greatly appreciate it.

Famous fisherman Jean-Francois Helias holding a Sareng Catfish (Images c/o

Sareng Catfish (Wallago Attu)

Updated 8/19/2015 with new Photos care of Shammi Hussain of Sareng Catfish in a Market.


What a scary mouth!


Huge Sareng with what appears to be a Snakehead as well.


Another shot of the Sareng Catfish in the market.

For more information on the Sareng Catfish please also check out this article by clicking here. You will find a report stating these fish will bite the hands of aquarium workers when being fed in a public aquarium as well as a pet shop owner who had an extremely aggressive specimen on display. It required bricks on the lid in order to keep it inside the tank, check out the story for yourself by clicking the link above.

Thanks for reading, if you have any useful information to share about the Sareng Catfish feel free to leave a comment below.

Note – We have not kept this fish in captivity nor do we suggest them to be kept in captivity. If you wish to leave a comment disputing information in this post, please do so in a respectful manner without bashing the website or it’s writers. There is not much known about this fish and if your information is based on a couple juvenile specimens you kept in a tank for a short while your “facts” will not be accepted as the behavior of an entire species. The majority of information we posted about this fish came from River Monsters and its host Jeremy Wade who is a well respected Biologist.


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  • NPC says:

    It’s amazing how this fish can grow to almost 8 feet long and devour dogs and small children, yet it is virtually unknown to the outside world.

  • mike says:

    I don’t think its very rare as you have written, i can buy a kilo of sareng at my place for 300 indian rupee (less than 5 american dollar), and i can get it for less than half if i travel 400 km north to the brahmaputra valley.

    • TankTerrors says:

      That is quite interesting, most things I have read state they are very hard to find and catch for fisherman who travel to the area. I wonder if the locals just know all the best spots to find them but keep it secret from outsiders. I have edited the post to include your information about them for sale in fish markets. Thanks for the comment.

      • Ulli says:

        We ocasonaly get this fish in our list from our fish supply in Germany (Aquarium Glazier) they specialize in rare fish like these.

        It might not be rare around the area its native to bu it is rare in EU and USA.

  • Lt Col(Retd) M Ranjit Singh says:

    Is Tank Terrors based in Manipur,India? Sareng is the most famous & delicious dish of Manipuris. Any feast in Manipur without a dish of Sareng will be almost sacrelageous. In the fish market of Manipur, Sareng is available in very large quantities, all imported from outside Manipur. What I wanted to say is that it is not so rare species as you have written.

    • TankTerrors says:

      No, we are not. That is why we’d like some photos of these markets. We’ve been told a couple times now that the Sareng is all over fish markets but I’ve never been sent a photo of such.

  • Shaikat says:

    I am from Dhaka, Bangladesh and this fish (locally known as Boal Fish) is extremely common in the fish market. If I walk from my home to the nearest fish market, I’d see 15-20 good sized Boal fish there. Sometimes, we even see very long and big Boal fish in our market (4-6 ft long).From River Monsters show I came to know that the fish is difficult for anglers to catch though very easy to catch by Net.

  • madan says:

    sarang at first i thought a different species , now saw full sized picture and it is delicious fish loved by all who knows it. And heard about 6 to 8 ft bigger are rare ,but grow great size, gill net fisher man says they sell it for good money (value) .Will defneatly try to get photos of sarang when I go for fishing. its common (local name) name in our area is Baali .

  • Umer Soomro says:

    In Sindh (Pakistan) it is called JERKO

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