Iridescent Shark Care Guide

Pangasianodon hypophthalmus · Freshwater Fish

Iridescent Shark
AI-generated illustration of Iridescent Shark
Temperature
72-79°F
pH
6.5-7.5
Adult size
~39.4″ (100 cm)
Suggested tank
500+ gal
Origin
Mekong and Chao Phraya river basins, Southeast Asia
Family
Pangasiidae

What Iridescent Shark look like

Pangasianodon hypophthalmus is a large migratory catfish with a streamlined laterally compressed body, forked caudal fin, and small mouth set below the snout. Juveniles show the bright silver sheen that gives the species its common name, while adults become bulkier and darker.

Behavior & temperament

This is a fast, skittish, social open-water fish that grows far beyond normal aquarium size. It is peaceful with fish too large to swallow but can injure itself by crashing when startled. It belongs only in very large aquaria, indoor ponds, or public-aquarium systems with powerful filtration and open swimming space.

Diet & feeding

Iridescent Sharks are omnivorous river catfish. Juveniles take sinking pellets, chopped earthworms, bloodworms, shrimp, insects, and plant-based foods; adults need a large varied diet and should not be fed feeder fish.

Behind the name

Pangasianodon refers to the pangasiid catfish group; hypophthalmus means under-eye, referring to the low eye position.

Plan your tank

Check the numbers before you buy: tank volume, a stocking plan, cycle progress, water changes, and your ongoing care routine.

Keeping Iridescent Shark?

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