Emerald Green Cory Care Guide

Corydoras splendens · Freshwater Fish

Emerald Green Cory
AI-generated illustration of Emerald Green Cory
Temperature
70-80°F
pH
6.5-7.5
Adult size
~5″ (12.7 cm)
Suggested tank
20+ gal
Group size
6+ together
Origin
Amazon
Family
Callichthyidae

What Emerald Green Cory look like

Corydoras splendens, commonly known as the Emerald Green Cory, exhibits a laterally compressed, fusiform body shape that can reach a maximum adult size of approximately 5 inches (12.7 cm). The species is characterized by its striking emerald green coloration, which is most pronounced on the dorsal surface, transitioning to a lighter hue ventrally. Sexual dimorphism is subtle; males tend to be slightly smaller and more slender than females, particularly during the breeding season when females exhibit a more rounded abdomen due to egg development. Notable morphological features include the presence of a well-developed adipose fin, a series of bony plates along the lateral line, and a distinctive set of barbels that aid in foraging along the substrate. Defensive adaptations include the ability to produce a mild toxin from their skin when threatened, which serves as a deterrent against potential predators.

Behavior & temperament

Emerald Green Corys are social fish that thrive in groups, exhibiting a strong tendency to school, which provides safety in numbers. They are primarily benthic dwellers, foraging along the substrate for food, but can also be observed swimming in the mid-water column. Their breeding behavior is characterized as egg scatterers; females release eggs among fine-leaved plants or substrate, where they adhere until hatching. In terms of temperament, these fish are generally peaceful and exhibit low aggression levels, making them suitable for community tanks. They establish a loose social hierarchy within their groups, often displaying playful behaviors and occasional displays of dominance among males.

Diet & feeding

In the wild, the Emerald Green 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 live or frozen foods such as bloodworms and brine shrimp, as well as occasional vegetable matter to ensure optimal health.

Behind the name

Corydoras (from Greek 'kory' meaning helmet; 'doras' meaning skin) refers to the armored nature of these fish, while 'splendens' is Latin for 'shining' or 'brilliant', reflecting the species' vibrant coloration.

Plan your tank

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

Keeping Emerald Green Cory?

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