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Lake Kutubu Rainbowfish
Lake Kutubu Rainbowfish
Origin
Papua new Guinea
Habitat Size
50-150 Liters
Water Type
Fresh Water
Water Temperature
24º-28ºC
Cost in India
₹80 - ₹150
Size
2 - 6 inches (Small)
Diet
Omnivore
by Happy Pet TeamUpdated on 2 Dec 2025
Introduction of the Lake Kutubu Rainbowfish
The most rainbow-colored of them all is the Lake Kutubu Rainbowfish (Melanotaenia lacustris), or Turquoise Rainbowfish. The males possess iridescent turquoise-blue bodies, whereas females are not so vividly colored and slightly less in body. Males are active, hardy, and prefer to be in a group and hence will be a great centerpiece for a community aquarium.
Characteristics
Temperament
Aggressive
Friendly
Compatibility with other fishes
Not Friendly
Super Friendly
Habitat Size
Small
Large
Habitat Requirements for the Lake Kutubu Rainbowfish
Initial Setup Cost
₹4,000 - ₹12,000
Water Temperature
24º -28ºC
Water Type
Fresh Water
PH Level
7 - 8
Tank Setup
Essential Equipment
Aquarium tank
Water filter
Heater
Light
Substrate
Nutritional Table of the Lake Kutubu Rainbowfish
Avg Monthly Expenses
₹80 - ₹ 150
Lake Kutubu Rainbowfish are omnivorous with complex needs:
Health & Care of Lake Kutubu Rainbowfish
Common Health Issues
Fin rot
White spot / ick
Fungus
Swim bladder inflammation
Columnaris (cotton wool-like growth on the skin)
Velvet disease (yellowish-brown spots on the skin)
Signs of good health
Active
Bright coloration
Good apetite
Signs of sickness
Loss of appetite
Lethargic behaviour
Dull coloring
Tattered fins
Swimming abnormally
Common Problems of the Lake Kutubu Rainbowfish
Prerequisites for a Fish
Adequate tank space
Cleanliness
Effort & commitment
Enriching Environment
Written by
Happy Pet TeamAuthor
Team Happy Pet is a passionate collective of pet experts, enthusiasts, and advocates dedicated to sharing trusted and insightful content.
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Frequently Asked Questions
What do Lake Kutubu Rainbowfish eat?
They are omnivorous and enjoy a varied diet of high-quality flakes, live or frozen foods, and vegetable matter.
How can I tell if my Lake Kutubu Rainbowfish is healthy?
A healthy Lake Kutubu Rainbowfish will be active, have bright coloration, and display a good appetite.
How often should I feed my Lake Kutubu Rainbowfish?
They should be fed twice a day with portions they can consume in a few minutes.