Aulonocara hansbaenschi

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Aulonocara hansbaenschi, also known as Red Shoulder, is an African cichlid from Lake Malawi, valued for the striking coloration shown by adult males. Its red-orange shoulder contrasts with the blue tones of the body and fins, giving it a distinctive appearance in a Malawi cichlid aquarium. This species belongs to the Aulonocara group, commonly called peacock cichlids, which search for small organisms in sandy areas. It requires warm, alkaline, well-oxygenated water and a rocky layout that provides visual boundaries. Its availability is generally variable, making it less common than some of the most regularly offered Aulonocara species.

General species description

Aulonocara hansbaenschi is a medium-sized Lake Malawi cichlid in the family Cichlidae and subfamily Pseudocrenilabrinae. Like several Aulonocara, it spends part of its time above sandy areas, using sensory pores to locate small prey hidden in the substrate. Adult males develop stronger coloration, usually combining blue tones with a red-orange shoulder. The species may defend a small territory during spawning, but it is not as aggressively territorial as many mbuna. It is suitable for a Malawi cichlid aquarium when housed with compatible fish and when overly aggressive or visually similar species are avoided. Its availability remains variable, depending on strains and imports.

Geographical origin and biotope

The species comes from Lake Malawi, in the African Rift Valley. The requested country reference is Mozambique, which borders a significant portion of the lake; the species is also associated with Malawian shores within the same basin. It inhabits rocky shores, rubble fields and transitions between rocks and sand, usually in clear, alkaline, well-oxygenated water. The substrate consists of fine sand mixed with stones and larger rocks that provide shelter. Aquatic vegetation is generally sparse, while shoreline areas may support grasses and seasonal terrestrial vegetation. In an aquarium, provide steady water movement, a secure rock layout and a broad sandy area.

Precise location and local name

Aulonocara hansbaenschi is associated with Lake Malawi, particularly rocky and sandy habitats in the southern and southeastern parts of the lake. The most widely used trade and vernacular name is Red Shoulder, referring to the red-orange area behind the head and above the pectoral fin in colorful males. In the aquarium trade, the scientific name remains the best way to distinguish this species from other Aulonocara with red shoulders or similar patterns. Fish should be identified carefully to avoid mixing localities and unintended hybridization, especially in Malawi cichlid community aquariums.

Appearance and physical characteristics

Aulonocara hansbaenschi has an elongated, laterally compressed body suited to feeding above the substrate. Adult males generally display a metallic blue body with a wide red-orange shoulder marking; the fins may also show blue edges or colorful reflections. Females and juveniles are much less colorful, often gray-brown with subdued vertical bars or markings. As in other Aulonocara, the head has sensory pores that help detect movement from small prey in the sand. Maximum size is around 13 cm, depending on sex, strain and rearing conditions. Good water quality and a balanced diet support more stable coloration in adult males.

General diet

In nature, Aulonocara hansbaenschi mainly searches for small invertebrates and other organisms found in or on the sand. In aquariums, its diet should consist primarily of quality pellets or flakes made for Malawi cichlids, supplemented with suitable marine or animal-protein foods. Small portions offered regularly are preferable to one very large feeding. Frozen foods such as mysis or brine shrimp may be offered occasionally, but should not become the exclusive diet. Very fatty foods and excessive protein should be avoided because they may cause digestive problems. A varied but moderate feeding routine supports the males’ coloration and overall condition.

Essential data

• Original river name: Lake Malawi
• Local name used: Red Shoulder
• Origin of the scientific name: Genus Aulonocara; species name dedicated to Hans Baensch
• Etymology of the full name: Aulonocara approximately means furrow bearer, referring to the sensory pores on the head; hansbaenschi honors Hans Baensch
• Common/vernacular names: Red Shoulder, red-shouldered peacock cichlid
• Family: Cichlidae
• Subfamily: Pseudocrenilabrinae
• Name pronunciation: aw-loh-noh-KAR-uh hans-BEN-shee
• Discovery: Wolfgang E. E. Baensch, Rainer Riehl and Günther Zetzsche, 1987
• Maximum adult size: About 13 cm
• Water temperature and pH: 24 to 28 °C; pH 7.5 to 8.6
• Waterbody appearance and surrounding vegetation: Clear alkaline lake water, rocky shores and sparse aquatic vegetation
• Typical tankmates: Aulonocara baenschi, Labidochromis caeruleus, Copadichromis borleyi, Sciaenochromis fryeri, Synodontis njassae
• Temperament and behavior: Peaceful to moderately territorial; more territorial during spawning
• Water depth: Rocky and sandy coastal areas, generally shallow to intermediate depths
• Sexual dimorphism: Male larger and brightly colored; female and juvenile gray-brown
• Bottom structure and flow: Fine sand, rocks and rubble; regular circulation and well-oxygenated water

In your aquarium

For successful care of Aulonocara hansbaenschi, use a spacious aquarium with fine sand and firmly positioned rocks that create visual barriers. Maintain warm, alkaline and stable water, supported by effective filtration and regular water changes. A group containing one male and several females generally helps reduce reproductive pressure on a single female. Avoid hybridization with other Aulonocara and select tankmates of comparable size and temperament. A varied diet offered in small portions helps maintain body condition and the shoulder coloration.