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Common Goldfish
Common Goldfish
Origin
China
Habitat Size
150-400 Liters
Water Type
Fresh Water
Water Temperature
18º-22ºC
Cost in India
₹200 - ₹300
Size
6 - 18 inches (Medium)
Diet
Omnivore
by Happy Pet TeamUpdated on 10 Nov 2025
Introduction of the Common Goldfish
The Common Goldfish (Carassius auratus) ranks among the most often kept aquarium fishes globally and this for a very good reason. It is characterized by its durability, active character, and shining golden color, thus it is usually the first pet for novice aquarists.
Characteristics
Temperament
Aggressive
Friendly
Compatibility with other fishes
Not Friendly
Super Friendly
Habitat Size
Small
Large
Habitat Requirements of the Common Goldfish
Initial Setup Cost
₹10,000 - ₹30,000
Water Temperature
18º -22ºC
Water Type
Fresh Water
PH Level
6.5 - 7.5
Tank Setup
Essential Equipment
Aquarium tank
Water filter
Heater
Light
Decor
Nutritional Guide of the Common Goldfish
Avg Monthly Expenses
₹200 - ₹ 300
The common goldfish is an omnivorous fish with a great appetite that mostly eats mini and major food. The main ingredients of a goldfish diet should be plant matter and protein. The following can be considered as the top three fish type diets:
Health
Common Health Issues
Fin rot
Pop eye (swollen eyes)
White spot / ick
Fungus
Swim bladder inflammation
Bacterial infections
Signs of good health
Active
Bright coloration
Good apetite
Signs of sickness
Loss of appetite
Lethargic behaviour
Dull coloring
Tattered fins
Swimming abnormally
The Common Goldfish is a hardy fish and can live for a long time, but still, it needs good water conditions and proper feeding. With proper care, a goldfish can live for 10 to 15 years, and sometimes even over 20 years if kept in a pond.
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
How big can Common Goldfish grow?
They can reach 10–12 inches in large tanks or ponds.
Can Common Goldfish live in bowls?
No, bowls are too small and unfiltered — they need large tanks or ponds to thrive.
Are Common Goldfish good for beginners?
Yes! They’re hardy, forgiving, and active, making them ideal starter fish.
Do they need a heater?
No — they prefer cooler, room-temperature water.
How often should I clean the tank?
Do partial water changes weekly and clean filters regularly.