π Blue Whale Catfish (3β) β Rare, Peaceful Giant with Iridescent Blue Glow
Meet the Blue Whale Catfish (Cetopsis coecutiens or Cetopsis candiru variant), a rare and mysterious river-dweller with a sleek, torpedo-shaped body and mesmerizing metallic blue-gray sheen. At just 3 inches, these juveniles are perfect for growing out into one of the most unique oddball catfish species in the aquarium trade.
Despite its size potential and impressive name, the Blue Whale Catfish is often peaceful and shy, spending much of its time gliding along the mid to lower regions of the tank. It brings a subtle, eerie beauty and deep river authenticity to any oddball or predator-friendly setup.
π Species Profile:
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Scientific Name: Cetopsis sp. (commonly referred to as Blue Whale Catfish)
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Common Name: Blue Whale Catfish, Whale Cat
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Size: 3 inches (can grow to 8β12+ inches depending on species)
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Temperament: Peaceful to mildly predatory at night; reclusive
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Tank Size: 75+ gallons
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Water Parameters: 74β82Β°F | pH 6.5β7.5 | Moderate to strong current
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Diet: Carnivore β eats bloodworms, cut shrimp, sinking carnivore pellets, and meaty frozen foods
β οΈ Care Notes:
This species thrives in dimly lit aquariums with:
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Smooth substrate and driftwood
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Caves and hiding spots
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Strong filtration and oxygenation (mimicking flowing rivers)
Though often peaceful, Blue Whale Catfish may scavenge or nip at slow or weak tank mates, especially during night hours. Ideal tank mates include:
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Bichirs, Ctenopomas, Datnoids
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Large peaceful cichlids or Silver Dollars
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Other mid-to-large oddball catfish
Avoid small community fish or delicate species.
π Why Buy from RobsAquatics.com?
Each 3β Blue Whale Catfish is:
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Sourced from trusted exporters specializing in rare South American imports
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Acclimated to prepared foods and aquarium conditions
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Shipped live with our Live Arrival Guarantee
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A perfect addition for collectors of rare, nocturnal, and oddball species
π¦ Very limited availability β Blue Whale Catfish are rarely seen at this size. Grab yours today and add mysterious movement to your tankβonly at RobsAquatics.com.