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Sturgeon Catfish - (Platystomatichthys sturio)

Sturgeon Catfish - (Platystomatichthys sturio)

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Sturgeon Catfish - (Platystomatichthys sturio)
Fish Details, Description and Information Below:

🐟 Sturgeon Catfish – (Platystomatichthys sturio) – Ancient-Looking South American Giant

The Sturgeon Catfish (Platystomatichthys sturio) is a rare and unusual freshwater predator from the Amazon and Orinoco River basins. Its elongated, armored snout and sleek, torpedo-shaped body give it a prehistoric, sturgeon-like appearance, making it a fascinating centerpiece for extremely large aquariums. This species is an active swimmer that requires plenty of open water space and should only be kept by experienced aquarists who can accommodate its massive adult size.


🔎 Quick Facts – Sturgeon Catfish (Platystomatichthys sturio)

  • 📛 Common Names: Sturgeon Catfish, Amazonian Sturgeon Catfish
  • 🔬 Scientific Name: Platystomatichthys sturio
  • 🌍 Origin: Amazon & Orinoco River basins – South America
  • 🎨 Appearance: Long, sturgeon-like snout, silver-gray body with darker shading, streamlined form built for speed
  • 📏 Max Size: 36–40 inches (90–100 cm)
  • 💎 Rarity: Rare in the aquarium trade

😇 Behavior & Temperament

  • ⚠️ Predatory – will consume smaller fish
  • 🐟 Best kept with other large, fast-moving species
  • 🌊 Strong, active swimmer—needs open space
  • 🚫 Not suitable for community aquariums with small fish

🏠 Aquarium & Tank Requirements

  • 📦 Minimum Tank Size: 500+ gallons (pond-size setups ideal)
  • 🪵 Large open swimming area with some driftwood or rock for resting
  • 💡 Moderate lighting
  • 🌊 Strong filtration and high oxygen levels to mimic riverine environments

💧 Water Parameters – Sturgeon Catfish Care

  • 🌡️ Temperature: 75–82°F (24–28°C)
  • ⚗️ pH: 6.0–7.5
  • 💧 Hardness: Soft to moderately hard

🍽️ Diet – Carnivorous

  • 🐟 Large sinking carnivore pellets
  • 🦐 Fresh or frozen shrimp, fish fillets, squid
  • 🪱 Live or frozen worms
  • 🐠 Whole fish (appropriately sized) for larger specimens

📋 Sturgeon Catfish Overview Table

Feature Details
🌍 Origin Amazon & Orinoco River basins
📏 Max Size 36–40 inches
😇 Temperament Predatory
🏠 Tank Size 500+ gallons
⚗️ pH Range 6.0–7.5
🌡️ Temperature 75–82°F
🍽️ Diet Carnivorous – large pellets, seafood, whole fish
🎯 Ideal For Expert keepers with very large aquariums or ponds

✨ Highlight:

  • The Sturgeon Catfish is a true river giant with a prehistoric look and powerful swimming ability, best suited for massive custom aquariums or indoor ponds where it can roam freely.
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