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Dusky Grouper
Dusky Grouper
Origin
Mediterranean Sea
Eastern Atlantic Ocean
Habitat Size
400-600 Liters
Water Type
Salt Water
Water Temperature
20º-25ºC
Cost in India
₹300 - ₹500
Size
20 - 30 inches (Large)
Diet
Carnivore
by Happy Pet TeamUpdated on 13 Nov 2025
Dusky Grouper Fish Introduction (Epinephelus marginatus)
The Dusky Grouper is a large carnivorous, marine fish widely known as yellowbelly grouper fish, garoupa fish, & yellowbelly rock cod fish. It is famous for its impressive size, striking appearance, and distinctive behaviors. The fish is native to the eastern Atlantic Ocean and Mediterranean Sea.
The garoupa fish has a strong body, massive head, and capacity to transition from female to male in its life (protogynous hermaphrodite). It requires a spacious, well-filtered tank, and has specific environmental and dietary needs.
Size of Dusky Grouper
The Dusky grouper fish can grow up to 150 cm in length and weigh up to around 100 kg. Its size can vary depending on food quality and living conditions.
Dusky Grouper Fish Lifespan
This fish has a long lifeline. It can live up to 40-50 years. In good conditions, the fish can live up to 60 years.
Price of Yellowbelly Grouper Fish
Dusky Grouper Fish price starts from ₹5,000 onwards. It can be purchased online or on offline fish aquarium stores.
Best Tank Mates
- Large, robust marine fish that are not small enough to be eaten
- Fish that occupy different areas of tank
- Strong swimmers capable of avoiding ambush
Avoid Pairing with
- Small fish or invertebrates
- Aggressive conspecifics (other Dusky Groupers) unless in extremely large tanks
- Very timid species that will be stressed or prey
- Reef fish/ invertebrates if the grouper is large
Characteristics
Temperament
Aggressive
Friendly
Compatibility with other fishes
Not Friendly
Super Friendly
Habitat Size
Small
Large
Dusky Grouper Fish Habitat
Initial Setup Cost
₹30,000 - ₹80,000
Water Temperature
20º -25ºC
Water Type
Salt Water
PH Level
7.8 - 8.5
It is a wild marine fish adapted to the conditions like -
Parameter | Details |
Essential Equipment
Aquarium tank
Water filter
Heater
Substrate
Light
Decor
Diet of Yellowbelly Rock Cod Fish
Avg Monthly Expenses
₹300 - ₹ 500
The Dusky Grouper fish is carnivorous in nature. It feeds on fish, crustaceans (crabs etc.), cephalopods like squid, & octopus.
Type | Foods to Offer |
Dusky Grouper Health & Care Considerations
Common Health Issues
White spot / ick
Fin rot
Ammonia poisoning
Bacterial infections
Velvet disease (yellowish-brown spots on the skin)
Parasitic infections
Signs of good health
Active
Bright coloration
Good apetite
Signs of sickness
Loss of appetite
Dull coloring
Swimming abnormally
Swollen abdomen
White growths
Maintain daily health & care for the fish in the following ways -
- Very sensitive to water quality - ammonia and nitrite must be zero.
- Filtration must be powerful enough to manage high bioload.
- Territorial behaviour increases as it grows - stress, injury, or disease can result if the tank is overcrowded or lacks hiding places.
- Because of their protogynous hermaphroditism: females mature around 5 years old, and transition to male around 9-16 years, often when larger (≈ 60-80 cm).
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 does a Dusky Grouper grow?
Up to ~150 cm and ~100 kg in the wild, though many individuals are smaller (40-80 cm).
How long do Dusky Grouper live?
Around 40-50 years in natural settings; up to ~60 in some records under ideal wild or semi-wild conditions.
Can Dusky Groupers be kept in aquariums?
Yes, but only by experienced marine aquarists with very large, correctly filtered tanks. Adults require vast space, strong filtration, and specialized care. Juveniles may be manageable earlier.
What should I feed a Dusky Grouper in captivity?
A diet of frozen or fresh fish, squid, crustaceans, live prey occasionally, feeding quantity and frequency adjusted as it grows, avoid overfeeding.