The Pygmy Corydoras, scientifically known as Corydoras pygmaeus, is a small, peaceful freshwater fish belonging to the family Callichthyidae. Native to slow-moving rivers and streams in the Amazon Basin, particularly in Brazil, these tiny catfish are highly popular among aquarists due to their small size, gentle nature, and active schooling behavior. Unlike other Corydoras species, Pygmy Corydoras often swim mid-water, making them unique in behavior. These fish typically grow to about 1 inch (2.5 cm) in length and can live up to 3-5 years in captivity with proper care.
Habitat and Tank Requirements:
In their natural habitat, Pygmy Corydoras are found in slow-moving, shallow waters with sandy or muddy substrates and dense vegetation. To replicate these conditions in a home aquarium, it’s important to provide soft, slightly acidic to neutral water with plenty of plants and hiding spots.
Tank Size and Water Parameters:
| PARAMETER | RECOMMENDED |
|---|---|
| Tank Size | Minimum 40 litres |
| Temperature | 72-79°F (22-26°C) |
| pH | 6.0-7.5 |
| Hardness | Soft to moderately hard water, 2-12 dGH |
This table provides the recommended water conditions for keeping Pygmy Corydoras healthy and active. These small fish thrive in stable water conditions with soft substrates, such as sand, which is gentle on their barbels while they forage for food.
Pygmy Corydoras are well-suited for heavily planted tanks, as they appreciate hiding spots and low light areas. Smooth rocks, driftwood, and plenty of live plants such as Java moss, Anubias, and Vallisneria will create a natural environment for them to explore. A gentle filtration system is recommended, as they prefer calm waters with minimal water flow. Regular water changes are essential to maintain their health.
We Recommend:
These carefully selected options provide a well-balanced nutritional profile, ensuring that your fish receive the essential nutrients they need for optimal growth, vibrant colors, and overall health. By offering a variety of these high-quality foods, you can help maintain the vitality and well-being of your fish, promoting a healthy and thriving aquarium environment.
Behavior and Compatibility:
Pygmy Corydoras are peaceful, social fish that thrive in groups of at least 6-8 individuals. They exhibit schooling behavior, often seen swimming in groups in the middle and bottom areas of the tank. This schooling activity is one of their defining features, as other Corydoras species typically remain at the bottom.
Due to their small size and gentle nature, Pygmy Corydoras are best suited for community tanks with other peaceful, small species such as tetras, rasboras, and dwarf shrimp. They should not be kept with larger, aggressive fish that could stress or prey on them.
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