Agassiz's Cory Care Guide

Corydoras agassizii · Freshwater Fish

Agassiz's Cory
AI-generated illustration of Agassiz's Cory
Temperature
72-79°F
pH
6.0-7.5
Adult size
~3″ (7.5 cm)
Suggested tank
20+ gal
Group size
6+ together
Origin
Peru
Family
Callichthyidae

What Agassiz's Cory look like

Corydoras agassizii, commonly known as Agassiz's Cory, exhibits a laterally compressed, fusiform body shape, reaching a maximum adult size of approximately 2.5 to 3 inches (6-7.5 cm). The species is characterized by its pale body adorned with a dense network of black dots and lines, creating a striking reticulated pattern. A prominent feature is the large, distinct black spot located on the lower half of the dorsal fin, which aids in species identification. Sexual dimorphism is subtle, with females typically being slightly larger and rounder than males, particularly when gravid. Defensive adaptations include a bony armor of dermal plates that protect against predation, and the presence of barbels that enhance sensory perception in the benthic habitat. The species also possesses an adipose fin, which contributes to its streamlined swimming efficiency.

Behavior & temperament

Agassiz's Cory is a social fish that thrives in groups, exhibiting a strong tendency to form schools, which provides safety in numbers against potential predators. They primarily inhabit the benthic zone of freshwater rivers and streams in Peru, where they forage for food among the substrate. Their breeding behavior is characterized by egg scattering, where females lay adhesive eggs on surfaces, often in vegetation or on flat stones. The species is generally peaceful and exhibits a calm temperament, making it suitable for community tanks, although males may display mild aggression during breeding rituals.

Diet & feeding

In the wild, Agassiz's Cory is an omnivore, feeding on a varied diet that includes detritus, small invertebrates, and plant matter. In captivity, they require a balanced diet consisting of high-quality sinking pellets, supplemented with occasional live or frozen foods such as bloodworms and brine shrimp to ensure optimal health.

Behind the name

Corydoras (from Greek 'kory' meaning helmet; 'doras' meaning skin) refers to the armored nature of the fish, while 'agassizii' honors the American naturalist Louis Agassiz.

Plan your tank

Check the numbers before you buy: tank volume, a stocking plan, cycle progress, water changes, and your ongoing care routine.

Keeping Agassiz's Cory?

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