Sterba’s corydoras
Introduction
Sterba’s corydoras (Corydoras sterbai), commonly known as Sterba's cory, is a popular freshwater catfish among aquarists. Renowned for its striking white spots on a dark body, this species adds visual appeal to any aquarium. Its peaceful nature and manageable care requirements make it an excellent choice for both novice and experienced fishkeepers.
What makes Sterba’s corydoras a favorite among aquarists?
Their distinctive spotted pattern and calm demeanor make them a delightful addition to community tanks.
Are Sterba’s corydoras suitable for beginners?
Yes, their hardy nature and straightforward care needs make them ideal for those new to fishkeeping.
Care and Environment
Providing optimal care for Sterba’s corydoras involves attention to tank setup, water parameters, and diet.
What is the minimum tank size for Sterba’s corydoras?
A minimum of 75 liters is recommended to accommodate a small group comfortably.
What are the ideal water parameters for these fish?
Maintain a temperature between 24°C and 28°C, pH levels from 6.0 to 7.5, and water hardness between 2 to 15 dGH.
How should the tank be decorated?
Use fine sand or smooth gravel to protect their delicate barbels. Incorporate hiding spots with driftwood, rocks, and live plants to mimic their natural habitat.
What filtration and lighting conditions are best?
A reliable filtration system ensuring moderate water flow is essential. Moderate lighting is sufficient, with shaded areas provided by plants or decorations.
What should their diet consist of?
Offer a varied diet including high-quality sinking pellets, supplemented with live or frozen foods like bloodworms and brine shrimp.
Are there any specific challenges in keeping Sterba’s corydoras?
They are sensitive to poor water quality, so regular maintenance and monitoring are crucial to prevent health issues.
Origin and Habitat
Native to the Guaporé River region between Bolivia and Brazil, Sterba’s corydoras inhabit smaller rivers and tributaries, as well as flooded forest pools with soft, acidic waters. These environments are characterized by swift-flowing water with few plants.
Where are Sterba’s corydoras found in the wild?
They are native to central Brazil and Bolivia, specifically the Guaporé River region.
What type of habitats do they prefer?
They thrive in smaller rivers and flooded forest pools with soft, acidic waters and swift currents.
Temperament and Compatibility
Sterba’s corydoras are peaceful, shoaling fish that thrive in groups of at least six. They are compatible with other non-aggressive species such as tetras, rasboras, and dwarf cichlids. Avoid housing them with larger, aggressive fish that may pose a threat.
How do Sterba’s corydoras behave in aquariums?
They are peaceful and prefer to be in groups, often seen foraging together at the bottom of the tank.
What are suitable tank mates for these fish?
Compatible tank mates include small, peaceful species like tetras, rasboras, and dwarf cichlids.
Are there any fish that should be avoided as tank mates?
Avoid aggressive or larger fish that may harass or prey on Sterba’s corydoras.
Interesting Facts
Sterba’s corydoras are known for their unique ability to secrete a chemical toxin when stressed, which can be harmful to other fish during transport. They are also facultative air-breathers, allowing them to gulp air from the surface when oxygen levels are low. Breeding them in captivity is achievable, with females laying adhesive eggs on flat surfaces.
Do Sterba’s corydoras have any unique defense mechanisms?
Yes, they can secrete a chemical toxin when stressed, which can be harmful to other fish during transport.
Can they breathe air?
They are facultative air-breathers, meaning they can gulp air from the surface when oxygen levels are low.
Is breeding Sterba’s corydoras in captivity possible?
Yes, they can be bred in captivity, with females laying adhesive eggs on flat surfaces.
Sources
All information in this article has been gathered from the following reputable sources:
Overview
Recommended Tank Size 26.4 Gallon (for groups of 6 or more) |
Minimum Group Size 6 |
Minimum Tank Volume 19.8 Gallon |
Maximum Adult Length 2.7 inch |
Average Adult Length 2.4 inch |
Shoaling (6+ required) Yes |
Preferred Water Type Freshwater, soft, acidic |
Temperature Range (°C) 24–28 |
pH Range 6.0–7.5 |
Water Hardness (dGH) 2–15 |
Typical Lifespan (years) 5 years |