Scientific Classification
Kingdom:Animalia
Phylum:Chordata
Class:Actinopterygii
Order:Siluriformes
Family:Callichthyidae
Genus:Corydoras
Species:pygmaeus
IUCN Status:Least Concern
Quick Stats
Difficulty
Medium
Environment
Freshwater
Temperature
22°C - 26°C
pH Level
6 - 7.5
Water Hardness
36 - 215 ppm
Lifespan
3 years
Origin
South America
Adult Size
20 - 30 cm
Diet
Omnivore
Creature Type
Fish
TDS
250 ppm
Water Flow
Low Flow
About This Species
The Pygmy Corydoras, also known as the Pygmy Catfish, is a tiny and peaceful shoaling fish that brings a lot of activity to a small aquarium. Unlike most catfish that stay exclusively on the bottom, these little creatures are known for their unique behavior of hovering and swimming in the middle of the tank as a coordinated group. To thrive, they must be kept in a group of at least six, though more is always better, as this makes them feel secure and allows their charming personalities to emerge. They are quite small, rarely growing larger than an inch, making them a perfect choice for nano tanks. For a happy Pygmy Cory, you'll want a tank with gentle water flow and a soft, sandy bottom to protect their sensitive whiskers, which they use to search for food. They are omnivores and will happily eat small sinking pellets and other foods that fall to the bottom. While they are peaceful and have a low impact on water quality, they are considered moderately difficult to care for because their small size makes them sensitive to sudden changes in water chemistry. Consistent tank maintenance and stable water conditions are the keys to keeping these delightful little catfish healthy.
Aquarium Building Information
Minimum Tank Size
20L
Swimming Zone
middle, bottom
Minimum School Size
6+
Special Requirements
Oxygen Consumption
Low
Waste Production
Low
Feeding Frequency
Daily
Metabolism Rate
Low
Activity Level
Moderate
Food Types
Sinking Pellets, Wafers, Frozen Food, Live Food, Flakes
Generate Printable Card
Create a printable card for this creature to display in your store or aquarium. The card includes a QR code for quick access to more information.