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Comet Goldfish
Comet Goldfish
Origin
United States
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 2 Dec 2025
Comet Goldfish Introduction
The Comet Goldfish (Carassius auratus) is one of the most popular and most recognized aquarium species around the globe. In addition to its unique long, trailing tail and smooth, torpedo-shaped body, this fish not only livens the pond or aquarium but also brings beauty with its lively nature.
Characteristics
Temperament
Aggressive
Friendly
Compatibility with other fishes
Not Friendly
Super Friendly
Habitat Size
Small
Large
Habitat Requirements of the Comet 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
Substrate
Nutritional Guide of the Comet Goldfish
Avg Monthly Expenses
₹200 - ₹ 300
Comet goldfish are omnivorous, and in order to be healthy and keep their colors irresistibly bright, they need to always be fed with different kinds of food. The best food items are:
Health & Care of the Comet Goldfish
Common Health Issues
Fin rot
Pop eye (swollen eyes)
White spot / ick
Fungus
Swim bladder inflammation
Bacterial infections
Signs of good health
Bright coloration
Good apetite
Active
Signs of sickness
Loss of appetite
Lethargic behaviour
Dull coloring
Tattered fins
Swimming abnormally
Comet goldfish are basically tough fish with the exception of problems that may arise from keeping them in small tanks or poor water conditions. Regular cleaning, good filtration, and a balanced diet are the circumstances that guarantee the lifetime and good health of fish.
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
Can Comet Goldfish live in outdoor ponds?
Yes, they can thrive in outdoor ponds with proper filtration and adequate space.
How big do Comet Goldfish grow?
Comet Goldfish can grow up to 10-12 inches in size, depending on their genetics and environment.
Do Comet Goldfish require special care compared to other fish?
They are relatively hardy fish but still require proper tank maintenance and a suitable diet for optimal health.