Pseudomugil Tank Size

The ideal tank size for Pseudomugil species (commonly known as Blue-eyes) depends on the specific species and the number of fish you plan to keep. Here are some general guidelines:

Minimum Tank Size Recommendations

• Small species (Pseudomugil gertrudae, Pseudomugil luminatus, etc.)
  • 10 gallons (38 liters) minimum for a small group (6+ fish).
  • 15-20 gallons (57-76 liters) recommended for more space and stability.
• Larger species (Pseudomugil signifer, Pseudomugil furcatus, etc.)
  • 20 gallons (76 liters) minimum for a school.
  • 30+ gallons (114+ liters) recommended for larger schools and tankmates.

Pseudomugil Tank Size Setup Considerations

• Schooling fish: Always keep them in groups of at least 6-10 individuals.
• Planted tank: They thrive in heavily planted tanks with floating plants and dim lighting.
• Gentle filtration: A sponge filter or gentle HOB filter is best to avoid strong currents.
• Tankmates: Best kept with other small, peaceful fish like nano rasboras, tetras, or shrimp.

Yes! Pseudomugil species are schooling fish, meaning they feel safest and display their best colors and behaviors when kept in groups. Keeping them in a school of at least 6-10 individuals is highly recommended, though more is always better if your tank size allows.

Why Keep Pseudomugil in a School?

• Reduces stress: Being in a group makes them feel secure.
• Enhances natural behavior: Males display more vibrant colors and perform courtship dances.
• Prevents aggression: Keeps males from overly harassing individual females.
• Improves health: Schooling behavior helps reduce stress-related diseases.

Ideal School Size Based on Tank Size