How to Identify Agassiz's Dwarf Cichlid

To identify Agassiz's Dwarf Cichlid (Apistogramma agassizii), look at these key features.

Physical Characteristics

Body shape

elongated

Coloration

Highly variable. Males typically exhibit iridescent blue, green, or yellow bodies with a prominent dark lateral stripe extending from the eye to the caudal fin. Fins are often extended and can be edged in red, orange, or blue. The caudal fin can be spade-shaped or lyre-shaped. Females are generally smaller and duller, often yellowish with a distinct black lateral stripe, especially when not breeding. Breeding females turn a vibrant yellow with intensified black markings.

Scale type

ctenoid

Mouth position

terminal

Distinctive features

Pronounced sexual dimorphism (males larger and more colorful), Dark lateral stripe, Extended finnage in males, Variable caudal fin shape (spade, lyre), Intense yellow coloration in breeding females

Dorsal fin

Long and low, often with extended rays in males, sometimes with a black margin.

Tail fin

Variable; can be spade-shaped, lyre-shaped, or rounded, often with intricate patterns and coloration in males.

Pectoral fin

Small and clear, used for subtle maneuvering.

Distinctive fins

Pelvic fins are often elongated and can be black-tipped in males, used in display.

Identification Tips

1. 1

   Size and Shape

   Males reach up to 7-8 cm (3 inches) total length, while females are smaller, typically 4-5 cm (2 inches). Body is elongated and somewhat compressed laterally.

2. 2

   Coloration (Males)

   Look for iridescent blue, green, or yellow body colors, a prominent dark lateral stripe, and often red, orange, or blue edging on fins. Caudal fin shape is a key identifier for specific morphs.

3. 3

   Coloration (Females)

   Females are generally duller, yellowish-brown, with a distinct black lateral stripe. During breeding, they become intensely yellow with very dark black markings.

4. 4

   Fin Morphology

   Males have more extended dorsal, anal, and pelvic fins compared to females. The caudal fin can be spade-shaped, lyre-shaped, or rounded, which helps distinguish between different populations.

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