name: pangasius sutchi (iridescent shark catfish) max size: up to 48 inches water parameters: pH 6.5-7.5, temperature 72-82°F, soft to moderately hard water diet: omnivorous – eats pellets, flakes, vegetables, and live or frozen foods such as shrimp, worms, and fish; juveniles require frequent feeding temperament: generally peaceful but extremely active; may unintentionally harm smaller fish due to size and speed tank setup: requires an extremely large aquarium or indoor pond with wide open swimming space; strong filtration and a secure lid are essential, as they startle easily compatibility: suitable only with other very large, peaceful fish such as large catfish, giant barbs, and large cichlids; not appropriate for standard home aquariums behavior: fast and powerful swimmer that can panic when startled, often dashing suddenly across the tank; juveniles school, adults become more solitary fun fact: pangasius sutchi is the same species commonly sold in food markets as basa or swai, and despite its shark-like shape, it is actually a river catfish