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Colombian Black Fin Sharks
Colombian Black Fin Sharks
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🦈 Colombian Black Fin Shark – Sleek, Schooling, and River-Ready
The Colombian Black Fin Shark, also known as the Colombian Shark Catfish, is a fast-growing, torpedo-shaped fish admired for its shimmering silver body, black-tipped fins, and high activity level. While often mistaken for a true freshwater shark, this species is actually a brackish-to-freshwater catfish that thrives in large aquariums and even public displays.
Known for their peaceful nature, strong schooling instinct, and impressive adult size, Black Fin Sharks are perfect for aquarists with room to grow—or already working with a big tank or custom setup. These are not for small aquariums, but are show-stopping centerpieces when properly housed and cared for.
🐟 Species Profile:
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Scientific Name: Pangasius sangitwongsei (often sold as Ariopsis seemanni or Hexanematichthys spp.)
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Common Names: Colombian Black Fin Shark, Colombian Shark Catfish
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Adult Size: 12–24+ inches
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Temperament: Peaceful, skittish when young
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Tank Size: 125+ gallons minimum (long term)
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Water Parameters: 74–82°F | pH 6.8–7.8 | Can tolerate brackish water with age
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Diet: Omnivore – floating pellets, shrimp, fish-based foods, bloodworms
🛠️ Tank Setup & Compatibility:
Black Fin Sharks thrive in:
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Large, open tanks with strong flow and plenty of swimming room
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Schooling groups of 3 or more to reduce stress
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Tanks with soft sand or smooth gravel to prevent barbel damage
Compatible with:
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Silver dollars, datnoids, large peaceful cichlids, arowanas, iridescent sharks
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Avoid small tankmates that could be eaten, or overly aggressive species
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May eventually benefit from slightly brackish conditions as they mature
Behavior:
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⚡ Constant swimmers—prefer to stay moving
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🧠 Skittish when young, but adapt well to stable, calm environments
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❤️ Schooling species—less stress and more natural behavior in groups
🛒 Why Buy from RobsAquatics.com?
Each Colombian Black Fin Shark is:
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✅ Hand-selected for healthy growth, fin clarity, and active behavior
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✅ Tank-acclimated and feeding on prepared foods
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✅ Shipped live with our Live Arrival Guarantee
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✅ A bold addition to monster tanks, predator-safe communities, and river-style aquascapes
📦 Add a sleek, shark-like swimmer to your tank with the Colombian Black Fin Shark—a schooling powerhouse with size, speed, and personality. Available now at RobsAquatics.com.
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