Pet Breed Guide NZ
Corydoras Catfish
The Corydoras Catfish, often affectionately called 'Corys', are charming, small freshwater fish originating from the rivers of South America. Known for their peaceful demeanour and industrious bottom-dwelling habits, these armoured catfish are a fantastic addition to many community aquariums. They are highly social, thriving in groups, and are fascinating to watch as they tirelessly sift through substrate for food. Their unique 'winking' behaviour, where they quickly dart their eyes, adds to their appeal. In New Zealand, Corydoras Catfish are generally legal to keep, making them a popular choice for Kiwi aquarists, though prospective owners should always confirm current MPI guidance and local council rules before purchasing.
Photo Gallery
NZ Ownership Snapshot
Legal in NZ- Noise Level
- quiet
- Social Needs
- groups
- Water Type
- freshwater
- Tank Size
- 40L minimum
- Diet Type
- Prepared aquarium food, frozen foods, and species-appropriate live or vegetable foods
- UVB Required
- No
Corydoras Catfish are generally legal to keep as a fish in New Zealand. This means that, for most species, there are no specific prohibitions on their ownership or sale within the country. However, it is a mandatory requirement for all prospective owners to check the current guidance provided by the Ministry for Primary Industries (MPI) as regulations can change. Additionally, local council rules or bylaws may have specific requirements or restrictions regarding pet ownership, even for common aquarium fish. Always confirm these details before purchasing to ensure full compliance with New Zealand law.
Breed Snapshot
- Size
- small
- Lifespan
- 5-10 years
- Origin
- South America
- Temperament
- Corydoras Catfish is a small fish originating from South America.
- NZ Price
- NZD $8 - $30 per fish, depending on species and size. Groups of 6+ are recommended.
- Annual Vet Cost
- Estimated annual vet/care costs for Corydoras Catfish are relatively low, primarily focusing on preventative care. Direct veterinary costs are uncommon unless a serious issue arises, as specialised fish vets are extremely scarce in New Zealand. Owners should budget around NZD $50 - $150 annually for high-quality sinking pellets/wafers, frozen foods, water testing kits, water conditioners, and replacement filter media. Early detection of health issues and maintaining pristine water quality are the best preventative measures.
Personality Scores
NZ Lifestyle Fit
Corydoras Catfish are highly suitable for a wide range of New Zealand homes, from city apartments to suburban houses and even rural sections or bachs, provided a stable indoor environment can be maintained for their aquarium. Their small size and quiet nature make them ideal for spaces where noise or large pets are not feasible. Climate considerations are crucial for their freshwater tank; regardless of whether you're in Auckland's humid north or the colder South Island, a reliable aquarium heater is essential to maintain their tropical temperature requirements (22-26°C). There are no specific regional restrictions for Corydoras Catfish in NZ, but owners should always consult their local council for any specific bylaws regarding pet ownership. They are readily available from reputable pet shops and aquarium specialists throughout New Zealand, ensuring legal and ethical sourcing for Kiwi owners.
Corydoras Catfish are generally legal to keep as a fish in New Zealand. This means that, for most species, there are no specific prohibitions on their ownership or sale within the country. However, it is a mandatory requirement for all prospective owners to check the current guidance provided by the Ministry for Primary Industries (MPI) as regulations can change. Additionally, local council rules or bylaws may have specific requirements or restrictions regarding pet ownership, even for common aquarium fish. Always confirm these details before purchasing to ensure full compliance with New Zealand law.
About This fish
Corydoras Catfish are a diverse genus of small, armoured catfish native to the freshwater systems of South America. With over 160 recognised species, they are a staple in the aquarium hobby due to their peaceful nature, hardiness, and engaging behaviour. These delightful fish typically live for 5-10 years when provided with optimal care, making them a long-term commitment for aquarists. They are primarily bottom dwellers, spending their days sifting through the substrate with their sensitive barbels in search of food. Their small size, generally ranging from 2.5 to 7.5 cm depending on the species, makes them suitable for a variety of tank sizes, though a minimum of 40 litres is recommended for a small group.
What They Look Like
Corydoras Catfish are easily recognisable by their distinctive armoured bodies, which are covered in overlapping bony plates rather than scales. Their colouration varies widely among species, ranging from silver, bronze, and black to intricate patterns of spots and stripes. Many species feature a darker stripe running along their lateral line or distinctive blotches. A key characteristic is their pair of sensitive barbels around their mouth, which they use to detect food in the substrate. Their eyes are relatively large and can move independently, giving them an almost 'winking' appearance when they quickly dart them around. They possess a small, triangular dorsal fin, pectoral fins, and a caudal fin that is typically forked.
Personality & Behaviour
Corydoras Catfish are renowned for their peaceful and social temperament. They are schooling fish and absolutely thrive when kept in groups of at least six or more of their own kind. A larger group not only makes them feel more secure but also allows their natural behaviours to be observed more readily. They are active during the day, constantly exploring the bottom of the tank, sifting through sand or fine gravel with their barbels. They are not aggressive towards other fish and are ideal tank mates for most small, peaceful community species. Their constant foraging helps keep the substrate clean, earning them the nickname 'aquarium clean-up crew', though they should never be relied upon as the sole means of tank maintenance.
Life in New Zealand
Corydoras Catfish are generally legal to keep as pets in New Zealand, making them a popular and accessible choice for Kiwi aquarists. They are commonly available through reputable pet stores and aquarium specialists across the country. While their legal status is generally clear, it is always prudent for prospective owners to check the latest MPI (Ministry for Primary Industries) guidance and any specific local council bylaws before acquiring these fish. Ensuring a stable, heated freshwater environment is crucial, regardless of whether you're in the humid north of Auckland or the colder South Island, as they require consistent tropical temperatures. Responsible sourcing from established NZ suppliers helps ensure healthy, ethically bred fish.
Is This the Right Pet for You?
Corydoras Catfish are an excellent choice for both beginner and experienced aquarists looking for a peaceful, active, and low-maintenance community fish. Their social nature means you'll need to commit to keeping a group, which requires a tank of at least 40 litres. They are not demanding in terms of water parameters, provided the water is clean and stable, but they do require a soft substrate like sand to protect their delicate barbels. If you appreciate observing a bustling underwater community and are prepared to provide a well-maintained freshwater environment, Corydoras Catfish can bring years of quiet enjoyment to your home. They are a wonderful addition for families, offering an educational and calming presence without requiring direct interaction.
Fun Facts
Fact 1
Corydoras Catfish are often called 'armoured catfish' because their bodies are covered in overlapping bony plates instead of scales.
Fact 2
They use their sensitive barbels, located around their mouth, to detect food hidden in the substrate.
Fact 3
Corydoras exhibit a unique 'winking' behaviour, which is actually them quickly darting their eyes to clean them or to look around.
Fact 4
They are obligate schooling fish, meaning they thrive and feel most secure when kept in groups of six or more of their own species.
Fact 5
Some Corydoras species can 'breathe' air from the surface using a modified intestine, especially in oxygen-poor water.
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