Overview:

The Pygmy Corydora (Corydoras pygmaeus) is a small, peaceful freshwater catfish native to South America. These adorable schooling fish are a favorite for nano and community tanks due to their social behavior and ease of care. They thrive in groups, showcasing delightful schooling movements at the bottom of the aquarium.

Common Name: Pygmy Cory

Scientific Name: Corydoras pygmaeus

Origin:

South America, including the Amazon River Basin.

Maximum Size:

1 inch (2.5 cm)

Pygmy Cory Care:

Tank Parameters Required:

• Minimum Tank Size: 10 gallons (38 liters) for small groups; 20 gallons or more for larger groups.

• pH Range: 6.0–7.0 (slightly acidic to neutral).

• Hardness: 2–15 dGH (soft to moderate).

• Temperature: 22–26°C (72–78°F).

Temperament:

Peaceful, social, and thrives in groups of six or more.

Tank Level:

Primarily bottom-dwellers, but they occasionally venture into the mid-levels of the tank.

Diet:

Omnivores. Provide a balanced diet of sinking pellets, high-quality flakes, and occasional live or frozen foods like bloodworms and brine shrimp. Small, frequent feedings are ideal.

Tank Decor:

• Use fine sand or smooth gravel substrate to mimic their natural habitat and protect their delicate barbels.

• Add driftwood, caves, and live plants for hiding spots and comfort.

• Ensure open swimming spaces and moderate water flow with gentle filtration.

Breeding:

Pygmy Corydoras are egg layers and can breed in captivity. A separate breeding tank with fine-leaved plants for egg-laying is ideal. Cooler water changes can trigger breeding behavior.

Behavior:

These fish are highly social and enjoy the company of their own kind, exhibiting delightful schooling behaviors. They sift through the substrate for food and contribute to the tank's cleanliness.

Suitable Tank Mates:

• Small, peaceful fish like tetras, rasboras, and dwarf gouramis.

• Avoid aggressive or large fish that might outcompete or stress them.

Maintenance:

• Perform 20–30% water changes every 1–2 weeks to maintain water quality.

• Use a reliable filtration system with gentle flow to ensure a clean, oxygenated environment.

Difficulty:

Easy, making them a great choice for beginner and experienced aquarists alike.

Caring for Pygmy Corydoras is a rewarding experience as they bring charm and activity to any aquarium. With the right setup and care, these tiny bottom-dwellers can live up to 3–5 years, providing years of enjoyment for shrimp and fish enthusiasts alike!