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Columbian Shark (Arius jordani)

Find Columbian Shark across reef-livestock retailers and from fellow hobbyists on ReefDock. Compare sources, check live pricing where available, and review source-tank parameters on Reef-Trak-verified fish listings before you buy.

Columbian Shark
Photo: (c) IHUNTA, some rights reserved (CC BY-NC), uploaded by IHUNTA · cc-by-nc
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Where to buy Columbian Shark

ReefDock searches the following reef retailers for this fish. Click through to see the live price.

  • Saltwaterfish

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    Search Saltwaterfish
  • Amazon

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    Search Amazon
  • Petco

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    Search Petco

About Columbian Shark

Dark gray to black body with a flattened head and barbels (whisker-like sensory organs) around the mouth. The dorsal and pectoral fins possess sharp spines. Streamlined body shape typical of catfish species.

Key facts

Origin
Central and South America, primarily Colombia and Panama; found in coastal brackish and freshwater rivers.
Min tank size
125 gallons
Family
Ariidae
Water Parameters
Temperature: 75-82°F pH: 7-7.8 Salinity: 1.018-1.025
Max Size
30
Feeding Schedule
1-2 times daily
Appearance
Dark gray to black body with a flattened head and barbels (whisker-like sensory organs) around the mouth. The dorsal and pectoral fins possess sharp spines. Streamlined body shape typical of catfish species.
Diet Details
Feed a carnivorous diet of high-quality sinking pellets, frozen bloodworms, and occasional live small fish or crustaceans. Feed 1-2 times daily, adjusting portions to avoid overfeeding.
Reef safety
Not Reef Safe
Difficulty Level
Moderate - Requires some experience due to specific dietary water or tank requirements. Best suited for intermediate aquarists.
Care Requirements
• Minimum 125-gallon tank for adults; strong swimmers need space • Freshwater to brackish conditions (0-5 ppt salinity); poor saltwater tolerance • Nocturnal; provide hiding caves and dim lighting • Omnivorous; feed sinking pellets, vegetables, occasional meaty foods • Predatory toward small fish and invertebrates
Temperament
Semi Aggressive

Looking for a hobbyist seller?

ReefDock's marketplace lets reef-keepers sell fish directly to other reef-keepers with Stripe-secured checkout and live-arrival photo confirmation. Browse current fish listings on ReefDock, or list your own.

Verify the source tank before you buy

ReefDock is the sister app to Reef Trak. Sellers who maintain a Reef Trak tank log can publish source-tank parameters on eligible fish listings — so you can see the conditions a fish was raised in before you buy. Log this fish on Reef Trak.

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