Iridescent Shark

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Pangasianodon hypophthalmus - (Sauvage, 1878)
Iridescent Shark

Cute when young but grows to more than 1.3 m (4 ft). Aaron Norman


Although usually sold as small individuals, these fishes get far too large—well over 4 ft. (130 cm) and some to a whopping 97 pounds (44 kg)—for most home aquariums. With a hyperactive nature, these can be classed, literally, as “tankbusters.”

Family: Pangasiidae

Other common name(s):

  • Sutchi Catfish
  • Iridescent Shark Catfish

Native range:

Habitat: Large streams and rivers.

Maximum length: 130 cm (51 in)

Minimum aquarium size: 3800 L (1,004 gal)

Water: Freshwater 22 °C (72 °F) - 26 °C (79 °F)

General swimming level: Bottom.


Omnivore. In the wild, it feeds on fish, crustaceans and vegetative matter.

Aquarium Compatibility

A predatory threat to most home aquarium fishes.

Special Care

Avoid this fish unless you have a very large aquarium and the wherewithal to feed, house and care for extremely large species.


This is a very important aquaculture species for table fare in Asia.

Reference: 101 Best Tropical Fishes
Image credit: AN
Text credit: KW