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Cardinal Tetra
Cardinal Tetra
Origin
Brazil
Colombia
Venezuela
South America
Habitat Size
20-50 Liters
Water Type
Fresh Water
Water Temperature
23º-27ºC
Cost in India
₹50 - ₹100
Size
1.2 - 2 inches (Nano)
Diet
Omnivore
by Happy Pet TeamUpdated on 19 Nov 2025
Cardinal Tetra Fish (Paracheirodon axelrodi) Introduction
Cardinal Tetra Fish is a captive freshwater marine native to the blackwater and clearwater tributaries of the Amazon Basin in South America. It is loved by aquarists primarily because of the vibrant blue and red colouration.
Characteristics
Temperament
Aggressive
Friendly
Compatibility with other fishes
Not Friendly
Super Friendly
Habitat Size
Small
Large
Cardinal Tetra Fish Habitat
Initial Setup Cost
₹3,000 - ₹6,000
Water Temperature
23º -27ºC
Water Type
Fresh Water
PH Level
4 - 6.5
Maintain the habitat given below to ensure the Cardinal Tetra fish thrives and lives a long and happy life.
Essential Equipment
Aquarium tank
Water filter
Heater
Light
Substrate
Decor
Dietary Needs of Cardinal Tetra Fish
Avg Monthly Expenses
₹50 - ₹ 100
Cardinal Tetra fish is omnivorous and thrive on a varied diet.
Health & Care of Cardinal Tetra Fish
Common Health Issues
Fin rot
White spot / ick
Ammonia poisoning
Fungus
Swim bladder disease
Bacterial infections
Signs of good health
Active
Bright coloration
Good apetite
Signs of sickness
Loss of appetite
Lethargic behaviour
Frequent hiding
Dull coloring
Swimming abnormally
Cardinal Tetras are hardy when kept in stable, clean conditions. Regular maintenance and balanced feeding are key to their long, healthy life.
Prerequisites for a Fish
Adequate tank space
Cleanliness
Effort & commitment
Enriching Environment
Written by
Happy Pet TeamAuthor
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Frequently Asked Questions
How many Cardinal Tetras should be kept together?
Cardinal Tetras should be kept in groups of at least six to promote natural schooling behavior and reduce stress.
What should I feed my Cardinal Tetras?
A varied diet of high-quality flake food, small pellets, and live or frozen foods like brine shrimp and daphnia.
Do Cardinal Tetras breed easily in home aquariums?
Breeding Cardinal Tetras can be challenging in home aquariums due to specific water parameters and conditions needed for successful spawning and fry survival.