About the Pygmy Cory Pygmy Corydoras (Corydoras pygmaeus) are tiny, armored catfish, about 1 inch (2.5 cm) long, known for their silver bodies, a distinctive black horizontal stripe from snout to tail, and peaceful, social, schooling behavior. Unlike most other Corydoras, they spend a significant amount of time swimming in the water column rather than just on the substrate, making them active additions to nano and planted aquariums. They require a large group (6+), soft sand or gravel substrate, and thrive in well-planted tanks with clean, soft water. Husbandry & Care: Temperament: Peaceful Minimum Tank Size: 10 Gallons Water Temperature: 72-80 °F Water pH: 6.0-7.4 Social Group: At least 6-10 fish; these catfish are more comfortable in social groups Diet: Omnivorous; Tropical Flakes, Frozen Food, Bottom Feeder Pellets, Detritus Compatible with: Bettas, Gourami, Angelfish, Discus, Guppies, Shrimp, Mollies, Platies, etc. This fish should not be placed with species that can consume them or super aggressive species.