Probable reason is your water parameters and other conditions are not right for the fish. These fish (Pangasius hypophthalmus) are usually sold as immature juveniles. They do not usually last long in the aquarium because they usually die of organ failure caused by being kept in the wrong conditions. They are not sharks but large (edible)catfish and under the right conditions will grow to over 36 inches, so they need a minimum sized tank of around 10 feet long with suitable height and depth to match the length. They need a pH of around 7, a dGH of around 10 and a temperature of around 75F. Maybe now you can understand what is wrong with your "Iridescent shark"
what does it mean if my catfishes eyes are white
yep
The iridescent shark is not actually a shark, it's a shark catfish. This fish lives in the waters of Southeast Asia and reproduces by laying eggs.
The name tells you. They change.
No. Once a fish has lost an eye it will not regrow.
when iridescent shark a small you can give them fish food or smaller fish to eat.but as they grow you can give them shrimp,worms ,blood worms,guppies and some small fishes (goldfish or mollies)
Most likely a moth.
certain fish behave in different ways. maybe he thinks it's comfortable, or he may be dead.
great white shark.
the great white shark
a great white shark is bigger than a bull shark
make shark is unbelivable so its the white shark