Blackfin Cory
Corydoras sp.
Blackfin Cory (Corydoras sp.) — Easy care, Peaceful, under Catfish & Cory. Minimum tank in the app: 15.9 US gal min; aim for 73–79°F and pH 6–7.8. The Blackfin Cory is an excellent choice for aquarists seeking a peaceful yet engaging bottom-dweller that thrives in groups.

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.
Blackfin Cory Tank Setup
Create a balanced environment with a fine substrate to protect their delicate barbels, incorporating plenty of hiding spots like driftwood and plants to mimic their natural habitat. Maintain gentle water flow and moderate lighting to reduce stress, allowing the corys to feel secure while foraging and exploring their surroundings.
What Do Blackfin Corys Eat?
As omnivorous bottom feeders, Blackfin Corys are generally quick to scavenge for food, but care should be taken to ensure they receive enough nourishment, particularly in a diverse tank. Provide sinking pellets and occasional treats like blanched vegetables or frozen foods to promote health and vibrancy, as competition with faster feeders can lead to undernourishment.
Blackfin Cory Tank Mates
Ideal tank mates include similarly sized, non-aggressive species such as small tetras or rasboras that occupy different levels of the tank. Be cautious with larger or more boisterous fish that may outcompete them for food or disrupt their peaceful nature. Intraspecies aggression is minimal, but keeping them in groups enhances their confidence and overall behaviour.
Are Blackfin 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. One common error is keeping them alone or in too small a group, which can lead to stress and a decline in well-being. neglecting their tank environment—such as not providing adequate substrate or cover—can result in skittish behavior and health issues due to stress.
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.




