Corydoras Hastatus: Care Guide for the Tiny, Lovable Catfish

As a professional aquarist, I have had the pleasure of working with various freshwater fish species over the years. But one tiny catfish that never fails to steal my heart is the Corydoras Hastatus, also known as the dwarf or pygmy corydoras.

These little fish may be small in size, but they are full of personality and make a great addition to any aquarium. So, whether you’re a beginner looking for a low-maintenance pet or an experienced aquarist looking to expand your collection, this care guide is here to help.

Key Takeaways:

  • Corydoras Hastatus is a small, lovable catfish that makes a great addition to any aquarium.
  • They are popular among beginner and experienced aquarists due to their small size and easy-to-maintain nature.

Getting to Know Corydoras Hastatus

As a freshwater fish species, Corydoras Hastatus belongs to the family Callichthyidae. They are often referred to as cory catfish due to their similar appearance and behavior to the larger catfish species. These tiny catfish are native to South America and are known for their small size and lovable nature.

With a maximum size of only 1 inch, Corydoras Hastatus is a popular choice for both beginner and experienced aquarists. They have a distinct appearance, with a silver body and black mask-like markings on their face. These markings are often compared to the mask of Zorro, making them a favorite among fish enthusiasts.

Physical Characteristics

In addition to their small size and unique markings, Corydoras Hastatus has other distinct physical characteristics. They have a broad, triangular head, and their eyes are set high up on their head. Their body is covered in bony plates, which provide protection from predators in the wild.

Another interesting feature of these tiny catfish is their barbels, which are whisker-like appendages located around their mouth. They use these barbels to navigate their environment and search for food.


Corydoras Hastatus are peaceful and social fish, often found swimming in groups of six or more. They are bottom-dwellers and spend most of their time scavenging for food on the substrate. They are also known for their playfulness and will often interact with other fish and objects in their environment.

One unique behavior of Corydoras Hastatus is their ability to swim upside down. This behavior is believed to be a defense mechanism, making it harder for predators to spot them.

In conclusion, Corydoras Hastatus is a fascinating and lovable freshwater fish species that is a popular choice among aquarists. With their small size, unique markings, and playful behavior, they make a delightful addition to any aquarium.


Q: What is the size of Corydoras Hastatus?

A: Corydoras Hastatus, also known as dwarf or pygmy corydoras, typically grow to a size of around 1 inch (2.5 centimeters).

Q: Are Corydoras Hastatus suitable for beginners?

A: Yes, Corydoras Hastatus make an excellent choice for both beginner and experienced aquarists due to their hardiness and adaptability.

Q: What is the ideal tank setup for Corydoras Hastatus?

A: Corydoras Hastatus thrive in a well-maintained aquarium with plenty of hiding places, soft substrate, and live plants. It is important to provide them with clean water and a proper filtration system.

Q: What do Corydoras Hastatus eat?

A: Corydoras Hastatus are omnivorous and will eat a variety of foods, including sinking pellets, frozen or live foods, and vegetable matter. It is recommended to provide them with a balanced diet to ensure their health and vitality.

Q: What is the ideal water temperature for Corydoras Hastatus?

A: Corydoras Hastatus prefer a water temperature between 72-78°F (22-26°C). It is important to maintain a stable temperature within this range to keep them healthy and comfortable.

Q: Can Corydoras Hastatus be kept with other fish?

A: Yes, Corydoras Hastatus are peaceful and can be kept with other small, non-aggressive fish that share similar water parameter requirements. They are known to do well in community tanks.

Q: How many Corydoras Hastatus should be kept together?

A: Corydoras Hastatus are social fish and should be kept in groups of at least 6-8 individuals. Keeping them in larger groups not only provides them with a sense of security but also encourages natural behavior.

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