The translucent body creates a purplish tone that make them very unique and attractive. I'm not sure of the genetic term for this variant but it is truly amazing to see.
The Iridescent Shark is also known as the Pangasius Catfish, the Sutchi Catfish and the Striped Catfish. There is also an albino iridescent shark. As you may have guessed from some of the other common names, this really isn't a shark, it's a catfish. They originate from Asia and this is one of the species that is completely unsuitable for most hobbyists in our opinion. This fish can grow to be almost 4 feet in length (120 cm) and sometimes larger in the wild. They are very active swimmers as well. They are omnivorous and should go after all fish food that you place in the aquarium. Some feel that the iridescent shark should be given more carnivorous type rations as juveniles and to mix more greens into their diet as the get bigger. Aim for a varied diet of flake foods, frozen foods, algae wafers and catfish pellets.