🐟 Turquoise Rainbowfish (Melanotaenia lacustris) – Vibrant Schooling Fish

Description: The Turquoise Rainbowfish is a stunning freshwater fish with an iridescent turquoise-blue body and vibrant highlights that shift in color as it swims. Native to Lake Kutubu in Papua New Guinea, this active schooling fish is perfect for larger, planted community aquariums. Hardy and peaceful, Turquoise Rainbowfish are an excellent choice for aquarists who want a lively centerpiece species.

Care Information

• Care Level: Easy to Moderate
• Temperament: Peaceful, active
• Max Size: ~4–5 inches (10–12 cm)
• Tank Size: 40+ gallons (school of 6+)
• Diet: Omnivore – flakes, pellets, live/frozen foods
• Water Parameters:
• Temperature: 74–82°F (23–28°C)
• pH: 7.0–8.0
• Hardness: Medium to hard

❓ FAQ

Q: Are Turquoise Rainbowfish good community fish?
A: Yes, they’re peaceful and thrive with other similar-sized community species.

Q: How many should I keep together?
A: A school of at least 6 is recommended to reduce stress and bring out their colors.

Q: Do they need a planted tank?
A: While not required, planted aquariums enhance their color and create a natural habitat.

Q: Are they beginner-friendly?
A: Yes! They’re hardy, adaptable, and make a great centerpiece fish.

Q: How fast do they grow?
A: With a proper diet, they grow quickly and develop their vivid colors by adulthood.