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Serratus Pleco/Mustang Cactus Pleco - (Pseudacanthicus serratus)

Serratus Pleco/Mustang Cactus Pleco - (Pseudacanthicus serratus)

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Serratus Pleco/Mustang Cactus Pleco - (Pseudacanthicus serratus)
Fish Details, Description and Information Below:

🐟 Serratus Pleco / Mustang Cactus Pleco – (Pseudacanthicus serratus) – Rare Spiny South American Pleco for Sale

The Serratus Pleco (Pseudacanthicus serratus), also known as the Mustang Cactus Pleco, is a rare and striking species prized by pleco collectors for its heavily armored body, bold spiny appearance, and powerful build. Native to the fast-flowing rivers of South America, this pleco belongs to the cactus pleco group (Pseudacanthicus spp.), known for their impressive size and fierce, prehistoric look.

With proper care, this species develops strong body plating, long fin spines, and a commanding presence, making it a true showpiece for large aquariums.


🔎 Quick Facts – Serratus Pleco (Pseudacanthicus serratus)

  • 📛 Common Names: Serratus Pleco, Mustang Cactus Pleco
  • 🔬 Scientific Name: Pseudacanthicus serratus
  • 🌍 Origin: South America
  • 🎨 Appearance: Heavy armor plating, pronounced spines, bold patterning that intensifies with maturity
  • 📏 Max Size: 14–18 inches (35–45 cm)
  • 💎 Rarity: Rare and highly sought after in the aquarium trade

😇 Behavior & Temperament

  • ⚔️ Territorial with other large bottom-dwellers
  • 🐟 Can be kept with large, robust tankmates
  • 🌙 Primarily nocturnal but may become active during feeding times
  • 🪵 Likes to wedge itself between rocks or driftwood for security

🏠 Aquarium & Tank Requirements

  • 📦 Minimum Tank Size: 125+ gallons
  • 🪵 Provide large driftwood, rock caves, and tight-fitting hiding spots
  • 🌊 Strong water movement with high oxygenation
  • 💡 Moderate lighting to mimic natural habitat

💧 Water Parameters – Serratus Pleco Care

  • 🌡️ Temperature: 77–84°F (25–29°C)
  • ⚗️ pH: 6.5–7.8
  • 💧 Hardness: Soft to moderately hard water

🍽️ Diet – Omnivorous with Carnivorous Preference

  • 🐟 Sinking carnivore pellets
  • 🦐 Frozen shrimp, krill, and mussels
  • 🪱 Bloodworms and earthworms
  • 🌿 Occasional vegetable matter such as blanched zucchini

📋 Serratus Pleco Care Overview Table

Feature Details
🌍 Origin South America
📏 Max Size 14–18 inches (35–45 cm)
😇 Temperament Territorial with other large bottom fish
🏠 Tank Size 125+ gallons
⚗️ pH Range 6.5–7.8
🌡️ Temperature 77–84°F (25–29°C)
🍽️ Diet Omnivorous (meaty preference)
🎯 Ideal For Large predator & pleco display tanks

✨ Highlight:

  • The Serratus Pleco is a rare, armored giant with dramatic spines and a bold presence—perfect for advanced aquarists looking for a centerpiece pleco in a large, well-structured aquarium.
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