Blue Cory
Corydoras sp.
Blue Cory (Corydoras sp.) — Easy care, Peaceful, under Catfish & Cory. Minimum tank in the app: 19.8 US gal min; aim for 68–73°F and pH 6–7.8. The Blue Cory is an engaging choice for both beginner and experienced aquarists, known for its sociable nature and bottom-dwelling habits.

Captive lifespan reflects typical experience in a home aquarium, not maximum recorded age; genetics, sourcing, and care vary.
Natural distribution
Mostly South America / Africa
- South America
- Africa
Regional colours match the stocking calculator’s origin map.
Blue Cory Tank Setup
Create a balanced environment with ample hiding spots, such as driftwood and plants, while ensuring open spaces for swimming. A fine substrate is important for their foraging behavior, and moderate lighting can help them feel secure without hindering their activity levels.
What Do Blue Corys Eat?
These omnivores are generally bottom feeders, and while they can handle competition, it's vital to ensure they have access to food before faster fish. Sinking pellets or specialized foods can help maintain their health and vibrancy, as they may struggle against quicker feeders in a mixed tank.
Blue Cory Tank Mates
Blue Corys pair well with similarly sized peaceful species, such as tetras or rasboras, which occupy different water levels. Avoid aggressive or overly active species that may outcompete them for food, and ensure that tank mates do not threaten their calm demeanor.
Are Blue Corys Good for Beginners?
In App-aquatic we file this under easy care. That still means a cycled tank, realistic stocking, and parameters that do not swing every weekend. Aquarists often underestimate the social needs of Blue Corys, keeping them alone or in too small a group, leading to stress and inactivity. neglecting to provide a suitable substrate can impact their foraging behavior and overall well-being.
Building a community? Run the full list through the stocking calculator before you add anything else.
Log tests and reminders in App-aquatic—free, same data you see here.




