Clown Knifefish: A River Delicacy with a Cult Following
The Clown Knifefish (Mastacembelus armatus) is a freshwater species of the knifefish family, primarily inhabiting rivers, streams, and clean water channels in the Southern, Central Highlands, and some Central regions of the country. Compared to its knifefish cousins, the Clown Knifefish is larger in size, with a longer body, smooth skin, and firm, fatty meat.
This elusive fish only reproduces during the rainy season, typically from June to September annually. As a result, this period offers the best opportunity to catch the freshest and most delicious Clown Knifefish. Due to their limited numbers and specific habitat requirements, they are considered a rare delicacy, commanding a high economic value.

The “Ginseng of the Water”- A Seasonal Treat with Nutritional Benefits
Nutritional Value: A Nourishing Delicacy Comparable to Ginseng
In traditional medicine, the Clown Knifefish is revered as a nutritious food with aphrodisiac properties. It is believed to enhance vitality, benefit joints and bones, enrich the blood, and aid digestion. Modern research has revealed that its meat is rich in protein, low in fat, and packed with omega-3 fatty acids, calcium, iron, and vitamins A and D. These nutrients offer the following health benefits:
- Improved cardiovascular health and reduced bad cholesterol.
- Stronger bones and prevention of osteoporosis.
- Enhanced vitality, particularly for men.
- Detoxification and heat reduction in the body, beneficial for those recovering from illness or weakness.
With its impressive nutritional profile, the Clown Knifefish is sought after not only as a culinary delight but also as a health-boosting food.
Delicious Dishes Featuring Clown Knifefish
The Clown Knifefish lends itself to a variety of mouthwatering dishes, especially suited to the Vietnamese palate:
Grilled Clown Knifefish with Salt and Chili
The fish is cleaned, marinated in salt and chili, and then grilled over hot coals until the skin turns crispy and golden, releasing an irresistible aroma. It is typically served with green chili salt or a tangy tamarind dip.

Clown Knifefish Grilled to Perfection
Clown Knifefish Braised in Turmeric
This dish is prepared by braising the fish with fresh turmeric, black pepper, and coconut water, resulting in a flavorful, fatty, and aromatic delicacy.
Crispy Fried Clown Knifefish
The fish is fried to a crisp, creating a beer-garden favorite often paired with tamarind sauce or a spicy chili fish sauce dip.
Clown Knifefish Hot Pot with Lá Giang Leaves
The delicate sweetness of the fish combines beautifully with the tangy leaves of the Lá Giang plant, making it an ideal hot pot ingredient for rainy days.
The High Price of Clown Knifefish: Understanding the Reasons
The scarcity of this fish, coupled with its challenging catch and exceptional nutritional value, contributes to its premium price tag. Currently, fresh Clown Knifefish fetches a price range of 500,000 – 700,000 VND per kilogram, depending on size and season. While attempts have been made to farm this species artificially, the quality of their meat falls short of their wild counterparts.
The Clown Knifefish is not just a rare delicacy but also a nutritionally rich food, earning its reputation as the “Ginseng of the Water” for its health-enhancing properties. If given the opportunity, indulge in the unique flavor and myriad benefits of this remarkable fish.