Colombian Tetra

• Care Level: Easy to Medium; highly adaptable and suitable for beginners.
• Average Size: Grows to approximately 2.5 to 3 inches (6.5 to 7.5 cm).
• Lifespan: Typically lives between 3 to 5 years, though some can reach 7 years with optimal care.
• Minimum Tank Size: 20 gallons (75L) for a small group, but 30 to 40 gallons is preferred for a full school and better stability. 

Behavior & CompatibilityThe Colombian Tetra is an active, confident schooling fish that thrives in groups of6 to 10 or more. Larger groups help diffuse their social energy and reduce potential aggression.

• Temperament: Generally peaceful but can be mildly nippy, especially toward slow-moving fish or those with long, flowing fins.
• Ideal Tank Mates: Robust community fish like Corydoras, larger tetras, rasboras, and medium-sized South American cichlids like Angelfish or Rams.
• Avoid: Timid or long-finned species like Bettas and fancy Guppies. 

Tank Setup & Water ConditionsTo bring out their best coloration, provide an environment that mimics their natural slow-flowing river habitat.Fluvalaquatics +1

• Aquascaping: Densely planted areas along the back and sides with open swimming space in the center. Dark substrates and driftwood help intensify their iridescent blue hue.
• Temperature: 72°F to 82°F (22°C to 28°C).
• pH: Slightly acidic to neutral (6.0 to 7.5).
• Hardness: Soft to moderately hard (GH 3–15 dGH). 

Diet & FeedingThey areunfussy omnivoreswith enthusiastic appetites. A varied diet of high-quality flakes or pellets supplemented with live or frozen foods likebloodworms, brine shrimp, and daphniais recommended to maintain their vibrant colors.