How to Identify Red Empress

To identify Red Empress (Aulonocara nyassae), look at these key features.

Physical Characteristics

Body shape

compressed

Coloration

Males: Brilliant red to orange body, often with iridescent blue or purple on the face, dorsal fin, and anal fin. Some individuals may exhibit vertical barring, especially when stressed or subdominant. Females: Silvery-brown to greyish, sometimes with faint vertical bars, lacking the vibrant coloration of males. Both sexes have distinct egg spots on the anal fin, more pronounced in males.

Scale type

ctenoid

Mouth position

terminal

Distinctive features

Prominent sensory pores on the head, characteristic of Aulonocara species, used for detecting invertebrates in the sand., Elongated, pointed dorsal and anal fins in mature males., Vibrant red/orange body coloration in dominant males.

Dorsal fin

Long, extending almost the entire length of the back, with 15-18 spines and 9-13 soft rays. Males often have extended, pointed tips.

Tail fin

Caudal fin is typically forked or emarginate, with rounded lobes. Coloration matches the body or has blue/purple iridescence in males.

Pectoral fin

Paired, relatively small and clear to slightly colored.

Distinctive fins

Anal fin with 3 spines and 7-10 soft rays, often with prominent yellow or orange 'egg spots' in males, which play a role in spawning behavior.

Identification Tips

1. 1

   Male Coloration

   Look for the intense red to orange body color, often with blue or purple iridescent highlights on the head and fins. This is the most distinguishing feature of a dominant male.

2. 2

   Female Coloration

   Females are much duller, typically silvery-grey or brownish, sometimes with faint vertical bars. They lack the vibrant hues of the males.

3. 3

   Body Shape

   Laterally compressed, somewhat elongated body typical of Aulonocara species.

4. 4

   Sensory Pores

   Observe the prominent sensory pores on the head, which are characteristic of Peacock cichlids and aid in detecting prey.

5. 5

   Egg Spots

   Presence of distinct yellow or orange egg spots on the anal fin, particularly in males.

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