Overview
- The Iridescent Shark (Pangasianodon hypophthalmus) is a large, schooling catfish, not a shark. It was formerly called Pangasius sutchi.
- Native to the Mekong and Chao Phraya rivers of Southeast Asia.
- Can reach about 51 in (130 cm) standard length.
- Sold as small, cute juveniles, usually without warning that it outgrows almost every home aquarium.
Feeding
- Omnivorous. Juveniles need plenty of protein to grow properly.
- Offer chopped earthworms, bloodworm, shrimp and quality sinking foods.
Habitat
- Suitable only for very large aquariums or public displays. Seriously Fish gives no minimum tank size.
- Dim lighting. Decor is optional, but large wood or smooth rocks can be added.
- Water: 72–79°F (22–26°C), pH 6.5–7.5.
Fish Care
- A nervous fish that can injure itself by bolting into the glass when startled. [UNVERIFIED]
- Needs a lot of open swimming space.
Compatibility
- Not aggressive, but will eat much smaller fish.
- Best with large, peaceful fish that live on the bottom or in open water.
Aquarium Behavior
- Constantly active, which can bother shy tankmates.
- Easily stressed by aggressive fish.
Breeding
- Not bred in home aquariums.
- It migrates upstream to spawn. Farms breed it commercially.