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Knight Corydoras
Knight Corydoras
Origin
India
South America
Habitat Size
50-150 liters
Water Type
Fresh Water
Water Temperature
22º-26ºC
Cost in India
₹80 - ₹150
Size
1.5 - 2 inches (Small)
Diet
Omnivore
by Happy Pet TeamUpdated on 11 Nov 2025
Quick Information
Knight Corydoras catfish is also known as Horseman's Cory catfish, True Eques Cory, and Eques Cory Cat. It is admired for its striking appearance and peaceful nature. The catfish is native to the Rio Meta in Colombia. The Knight Cory is a bottom-dwelling catfish that thrives in slow-moving waters that comprise dense vegetation and fine sand substrates.
What is the size of Knight Corydoras Catfish?
The Knight Corydoras size is approximately 2 inches (5 cm). It might grow larger as well if it is fed properly and taken care of.
What is the lifespan of Knight Cory?
Knight Cory catfish tend to live up to 5 years in a well-maintained aquarium.
Is Knight Corydoras available for sale? What is the price?
The Knight Corydoras is available at online aquarium websites and local aquarium shops, priced anywhere between ₹200 to ₹300.
Best compatible with:
- Tetras: Neon, Cardinal, Rummy Nose
- Rasboras: Harlequin, Lambchop
- Livebearers: Guppies, Mollies, Platies
- Dwarf Gouramis: Honey, Pearl
- Other Corydoras species: Such as Bronze or Panda Corys
Avoid pairing with:
- Large aggressive Cichlids: Oscars, Jack Dempsey
- Fin-nipping Barbs: Tiger, Tinfoil
- Aggressive male Bettas
- Predatory Catfish: Redtail, Pictus
- African Rift Lake Cichlids: Mbuna, Peacock
Characteristics
Temperament
Aggressive
Friendly
Compatibility with other fishes
Not Friendly
Super Friendly
Habitat Size
Small
Large
Habitat Requirements for Knight Corydoras Catfish
Initial Setup Cost
₹4,000 - ₹12,000
Water Temperature
22º -26ºC
Water Type
Fresh Water
PH Level
6.5 - 7.5
Creating a suitable living environment ensures that the Horseman corydoras catfish is well taken care of. It is recommended to pair Knight Cory in small groups of 6 or more. This allows the catfish to bring out their natural behaviour.
Essential Equipment
Aquarium tank
Water filter
Heater
Light
Substrate
Decor
Knight Corydoras Diet and Feeding Guide
Avg Monthly Expenses
₹80 - ₹ 150
Horseman Corydoras is a part of the bottom crew that feeds at the bottom of the aquarium. It does not come to the surface to consume food or treats. The catfish is primarily omnivorous in nature. This is why it is essential to feed the Knight Corydoras heavy food that sinks to the bottom.
Health
Common Health Issues
Fin rot
White spot / ick
Bacterial infections
Ammonia poisoning
Swim bladder inflammation
Parasites
Signs of good health
Active
Bright coloration
Good apetite
Undamaged fins
Signs of sickness
Loss of appetite
Frequent hiding
Swimming abnormally
Tattered fins
Lethargic behaviour
Maintaining optimum water conditions and focusing on a balanced diet are important to keep the knight corydoras healthy. Some of the common diseases that might affect the catfish are -
- Ich (White Spot Disease): It is a parasitic infection characterised by tiny white specks on the skin. It's highly contagious and can spread rapidly in aquariums. The affected fish should be instantly isolated to prevent the spread, while regular water checks and maintenance can stop the disease from occurring.
- Fin rot: This is caused by bacterial or fungal infection. It can make the fish look frayed or ragged. Monitor closely to prevent the condition from progressing.
- Swim bladder disease: Emerald corydoras catfish showcase abnormal swimming patterns when affected with this condition. It is often caused by low oxygen levels in the aquarium. Proper filtration can help prevent or stop this condition.
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 is the size of the Knight Cory?
Knight Corydoras catfish grow to about 2 inches (5 cm).
How long can they live?
Knight Cory catfish live for around 5 years or more.
Can you mix different types of Cory Catfish?
Yes, most Corydoras species are peaceful and can be kept together in community aquariums.
What is the ideal Knight Cory tank size?
A minimum 30-gallon tank is recommended for a small group.
Where can I find Knight/ Horseman Corydoras for sale?
They are available in local aquarium stores and from trusted online fish retailers.