🐟 Marbled Fenestratus × Friedrichsthalii Hybrid

(Central American Cichlid Hybrid)

The Marbled Fenestratus × Friedrichsthalii Hybrid is a large, aggressive Central American cichlid hybrid combining traits from the Fenestratus cichlid (Mexico) and Parachromis friedrichsthalii (often called the Yellow Jacket or Guapote). This hybrid is known for its bold marbled coloration, rapid growth, and highly territorial behavior, making it suitable only for experienced cichlid keepers with large aquariums.

🔍 Quick Facts

🆔 Common Name: Marbled Fenestratus × Friedrichsthalii Hybrid
🧬 Scientific Parentage: Fenestratus sp. × Parachromis friedrichsthalii
🧬 Family: Cichlidae
🌎 Origin: Captive-bred hybrid (parent species native to Mexico & Central America)
📏 Max Size: 12–16 inches (30–40 cm), sometimes larger

🕊️ Behavior & Temperament

🔥 Highly aggressive and territorial
😈 Strong predatory instincts
🐟 Will eat smaller fish
🧱 Extremely dominant, especially as an adult
🐠 Best kept singly or with very large, aggressive Central American cichlids

🏡 Tank Requirements

🛁 Minimum Tank Size: 125 gallons+ (larger strongly recommended)
🪨 Heavy rockwork and sturdy structures for territory definition
🌿 Plants will be uprooted or destroyed
💨 Very strong filtration required (high bioload)
🧱 Open swimming space plus defined territories

💧 Water Parameters

🌡️ Temperature: 75–82°F (24–28°C)
⚗️ pH: 7.0–8.0
💧 Hardness: Moderate to hard

🍽️ Diet

Carnivorous / piscivorous

• High-quality cichlid pellets
• Frozen foods (fish, shrimp, mussels, prawns)
• Occasional whole-food meaty items
  ⚠️ Avoid feeder fish long-term due to parasite and nutritional risks

📊 Overview Table

📝 Snippet

The Marbled Fenestratus × Friedrichsthalii Hybrid is a powerful Central American cichlid hybrid displaying intense coloration, rapid growth, and extreme territorial aggression. Best reserved for very large aquariums and experienced hobbyists, this fish demands careful planning, heavy filtration, and respect for its dominant nature.