Corydoras pygmaeus, or the pygmy corydoras or pygmy catfish is a tropical and freshwater fish belonging to the subfamily Corydoradinae of the family Callichthyidae. It originates in tropical inland waters in South America, and is found in the Madeira River basin in Brazil.
| Scientific Name | Common Name | Size | Behavior |
| Corydoras pygmaeus | Pygmy cory | 20mm | Peaceful |
| Water Temp. | Water pH | Tank Size | Diet |
| 22-26°C | 6.8–7.2 | 30 litres | Omnivorous |
| Lifespan | Care | Breeding diff. | Availability |
| 5 years | Easy | Easy | Occasionally |
| Robustness | Population min | Sociability | Territorial |
| Tolerant | 8 | Schoaling | No |