How to Identify Robust Happy

To identify Robust Happy (Serranochromis robustus), look at these key features.

Physical Characteristics

Body shape

compressed

Coloration

Highly variable. Males often display vibrant yellow to orange coloration on the belly and fins, with a greenish-brown to olive back. Females and juveniles are typically duller, with silvery-grey to olive bodies and sometimes faint vertical bars. Breeding males can exhibit iridescent blue or green hues on the head and flanks. A prominent dark spot or ocellus is often present on the posterior part of the dorsal fin.

Scale type

ctenoid

Mouth position

terminal

Distinctive features

Large, robust body, Large, protractile mouth with strong jaws, Conical, unicuspid teeth in outer rows, bicuspid in inner rows, Often a prominent nuchal hump in mature males, Distinctive coloration, especially in breeding males, Lateral line interrupted

Dorsal fin

Long, continuous dorsal fin with 14-17 spines and 10-13 soft rays. The spiny portion is longer than the soft-rayed portion.

Tail fin

Caudal fin is typically truncate to slightly emarginate.

Pectoral fin

Pectoral fins are relatively large and rounded.

Distinctive fins

Pelvic fins are pointed and often extended, particularly in males. Anal fin has 3 spines and 8-10 soft rays.

Identification Tips

1. 1

   Size and Body Shape

   Look for a large, deep-bodied cichlid, often reaching up to 50 cm (20 inches) in total length and weighing several kilograms. The body is laterally compressed but robust.

2. 2

   Mouth and Teeth

   Observe the large, terminal mouth with thick lips. Examination of teeth (if possible) reveals strong, conical outer teeth and smaller, bicuspid inner teeth, indicative of its predatory nature.

3. 3

   Coloration

   Pay attention to the belly and fin coloration, especially in males, which can be bright yellow to orange. The presence of a dark spot on the dorsal fin is also a key indicator.

4. 4

   Nuchal Hump

   Mature males often develop a prominent fatty hump on their forehead, which becomes more pronounced during breeding season.

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