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Vermiculated Sailfin Catfish - (Pterygoplichthys disjunctivus)

Vermiculated Sailfin Catfish - (Pterygoplichthys disjunctivus)

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Vermiculated Sailfin Catfish - (Pterygoplichthys disjunctivus)
Fish Details, Description and Information Below:

🐟 Vermiculated Sailfin Catfish – (Pterygoplichthys disjunctivus) – Large Algae-Eating Pleco

The Vermiculated Sailfin Catfish (Pterygoplichthys disjunctivus) is a large, hardy freshwater pleco species native to slow-moving rivers and floodplains in South America, particularly in Brazil. Recognized for its beautiful maze-like vermiculated patterning, long sail-like dorsal fin, and strong algae-grazing habits, this species is often kept in large aquariums and ponds for its cleaning abilities. While popular in the aquarium trade, it is important to note that this pleco grows very large and requires significant space and filtration.


🔎 Quick Facts – Vermiculated Sailfin Catfish (Pterygoplichthys disjunctivus)

  • 📛 Common Names: Vermiculated Sailfin Catfish, Sailfin Pleco
  • 🔬 Scientific Name: Pterygoplichthys disjunctivus
  • 🌍 Origin: South America – primarily Brazil
  • 🎨 Appearance: Dark body covered in light, maze-like vermiculations; large sail-like dorsal fin
  • 📏 Max Size: 18–20 inches (45–50 cm)
  • 💎 Availability: Common in the aquarium trade

😇 Behavior & Temperament

  • 🤝 Peaceful, but may be territorial toward other large plecos
  • 🌿 Excellent algae grazer, especially when young
  • 🌙 Mostly nocturnal, but will graze throughout the day in safe environments

🏠 Aquarium & Tank Requirements

  • 📦 Minimum Tank Size: 125+ gallons
  • 🪵 Provide driftwood for grazing and hiding
  • 🌊 Moderate water flow with strong filtration
  • 💡 Moderate lighting to encourage algae growth

💧 Water Parameters – Vermiculated Sailfin Catfish Care

  • 🌡️ Temperature: 72–82°F (22–28°C)
  • ⚗️ pH: 6.5–7.8
  • 💧 Hardness: Soft to moderately hard water

🍽️ Diet – Herbivorous with Some Protein

  • 🌿 Algae wafers and biofilm
  • 🥒 Fresh vegetables like zucchini, cucumber, and spinach
  • 🦐 Occasional protein foods such as shrimp pellets or bloodworms

📋 Vermiculated Sailfin Catfish Overview Table

Feature Details
🌍 Origin South America – Brazil
📏 Max Size 18–20 inches
😇 Temperament Peaceful, can be territorial with large plecos
🏠 Tank Size 125+ gallons
⚗️ pH Range 6.5–7.8
🌡️ Temperature 72–82°F
🍽️ Diet Herbivorous – algae, vegetables, occasional protein
🎯 Ideal For Large aquariums and ponds

✨ Highlight:
The Vermiculated Sailfin Catfish is a beautiful, algae-grazing giant pleco ideal for large tanks or ponds, but it requires ample space and strong filtration due to its size and waste production.

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