Paroon Shark - 3.5 inch

Paroon Shark, also known as Pangasius sanitwongsei, is a rare and impressive freshwater monster fish admired for its streamlined body, powerful swimming style, and bold river-predator look. At 3.5 inches, this juvenile specimen is still small enough for grow-out care, but buyers should understand that it is a fast-growing species that eventually needs a very large aquarium and strong filtration.

This fish is best suited for experienced hobbyists who keep large freshwater predators and understand the long-term space commitment required. Its active nature, nervous darting behaviour, and eventual adult size make it unsuitable for nano tanks or casual community setups.

Key Features

• Appearance: Long, sleek body with a shark-like profile, broad head, and smooth silver-grey coloration that gives it a dramatic monster fish presence.
• Size: Supplied at approximately 3.5 inches, but this species can grow extremely large in the right conditions and must be purchased with future tank upgrades in mind.
• Colors: Juveniles usually show silver, grey, and darker shading along the back, with a clean metallic look under aquarium lighting.
• Lifespan: With proper care, stable water quality, and adequate space, Paroon Shark can live for many years.
• Temperament: Generally predatory and powerful rather than aggressive all the time, but not suitable with very small fish that may be viewed as food.
• Water Type: Freshwater species that prefers clean, well-oxygenated water with strong filtration and regular maintenance.

Care Requirements

• Tank Size: Juveniles can be grown in large aquariums, but adults require an extremely spacious setup. A long tank with open swimming room is essential even at a young age.
• Water Parameters: Ideal temperature is around 22-28°C with pH 6.5-7.8. Stable conditions are more important than chasing exact numbers.
• Diet: Feed a varied carnivorous diet including quality sinking pellets, carnivore sticks, frozen foods, and other protein-rich aquarium-safe foods appropriate for its size.
• Tank Mates: Best kept with other robust, similarly sized large fish that are not easily bullied or swallowed. Avoid tiny community fish and delicate species.
• Care Tips: Provide secure décor without blocking swimming space, maintain high oxygen levels, and avoid sudden movements around the tank because juveniles can startle and dash quickly.
• Filtration: Use oversized filtration and strong biological support, as monster fish produce significant waste and need consistently clean water.

Paroon Shark is a serious long-term fish for dedicated monster fish keepers. If you want a rare juvenile with strong visual impact and are prepared for its future size, this specimen can become a standout addition to a large freshwater collection.