How to Identify Emerald Catfish

To identify Emerald Catfish (Corydoras splendens), look at these key features.

Physical Characteristics

Body shape

compressed

Coloration

The body is typically an iridescent green to blue-green, often with a darker olive-green or brownish dorsal region and a lighter, sometimes yellowish, ventral side. The intensity of the emerald sheen can vary depending on lighting and the fish's mood. Some individuals may exhibit a faint dark stripe along the lateral line.

Scale type

none

Mouth position

inferior

Distinctive features

Iridescent emerald green to blue-green body coloration, Two pairs of barbels on the lower jaw for foraging, Armored body plates (scutes) instead of scales, Adipose fin present

Dorsal fin

Single dorsal fin, typically with a strong spine and several soft rays. The spine can be locked upright.

Tail fin

Forked caudal fin, moderately sized.

Pectoral fin

Pectoral fins are well-developed, with a strong spine that can be locked, often used for propulsion and defense.

Distinctive fins

Adipose fin present, small and fleshy, located between the dorsal and caudal fins.

Identification Tips

1. 1

   Coloration

   Look for the distinctive iridescent emerald green to blue-green sheen on the body, which is the primary distinguishing feature.

2. 2

   Body Shape

   Observe the relatively deeper body compared to many other Corydoras species, giving it a more robust appearance.

3. 3

   Barbels

   Note the two pairs of prominent barbels on the lower jaw, characteristic of Corydoras species, used for sifting through substrate.

4. 4

   Dorsal Fin

   The dorsal fin is relatively tall and pointed, especially in males.

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