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The Altolamprologus compressiceps, also called Kilima Mandarin, is a fascinating cichlid from Lake Tanganyika. Its tall body, laterally compressed profile, and powerful head give it a distinctive appearance among African cichlids. This geographic form is valued for its orange to mandarin coloration and discreet predatory behavior. It is best suited to an experienced aquarist able to provide hard, alkaline, and highly stable water. Moderately uncommon in the aquarium trade, it is less routinely available than several Tanganyikan cichlids and deserves a carefully planned aquarium with rocky shelters and tank mates selected with caution.

General species description

Altolamprologus compressiceps is a Lake Tanganyika cichlid belonging to the lamprologine group. It inhabits rocky areas, moving slowly among cracks and cavities. Despite its fairly calm appearance, it is a specialized predator that captures small fish, shrimp, and other suitably sized organisms. In an aquarium, it should be treated as a territorial species, especially when a pair forms. A well-structured layout helps reduce conflict. The Kilima Mandarin form has moderate availability among specialist retailers, which explains its appeal to aquarists interested in distinct geographic populations.

Geographic origin and biotope

Reference countries: Tanzania, within the Lake Tanganyika basin; the species also occurs along several rocky shoreline sectors of the lake, which is shared by Tanzania, Zambia, the Democratic Republic of the Congo, and Burundi. Its biotope consists of rock faces and rubble slopes, with numerous crevices used as shelter and hunting stations. The water is clear, highly mineralized, alkaline, and well oxygenated. Aquatic vegetation is usually sparse in rocky areas; algae and microorganisms grow mainly on illuminated surfaces. In an aquarium, priority should therefore be given to stable rocks, hiding places, and excellent water quality.

Precise locality and local name

The name Kilima refers to a locality in the Tanzanian sector of Lake Tanganyika and is used here to distinguish this geographic form under the trade name Kilima Mandarin. It is associated with the lake’s rocky shoreline habitats rather than with a river or stream population. The local name used in the aquarium trade is Kilima Mandarin. This geographic designation should be retained when breeding the fish to prevent mixing it with other forms of Altolamprologus compressiceps, including populations sold under different locality names. To preserve its geographic value, breeders from the same line are preferred.

Appearance and physical characteristics

The body of Altolamprologus compressiceps is tall, sturdy, and strongly compressed from side to side. The head appears broad and powerful, while the mouth is adapted for seizing prey. The dorsal and anal fins are elongated, and coloration varies with mood, age, and population. The Kilima Mandarin form is distinguished by mandarin-orange highlights, often combined with brownish, golden, or copper tones over a darker base. The fin rays may show strong contrast. As with many Tanganyikan cichlids, colors become more intense when the fish is in good condition and occupies a suitable territory.

General diet

Altolamprologus compressiceps is primarily carnivorous. In the wild, it hunts small fish, juvenile cichlids, crustaceans, and various invertebrates near the rocks. In an aquarium, its diet should be based on quality meaty pellets, supplemented with frozen foods such as mysis, brine shrimp, or finely portioned krill. Prey items must be small enough to swallow easily. Small regular meals are preferable to one excessive feeding. Very vegetable-rich foods should be avoided, as should overfeeding, which can promote obesity and quickly degrade water quality.

Essential data

• Native river name: None; this is a lake-dwelling fish from Lake Tanganyika.
• Local name used: Kilima Mandarin.
• Origin of the scientific name: The genus name was created to distinguish these high-bodied, compressed-headed cichlids from Lamprologus in the broad sense.
• Etymology of the complete name: Altolamprologus combines alto, suggesting a high form, with Lamprologus; compressiceps means compressed head.
• Common/vernacular names: Kilima Mandarin; Tanganyika compressiceps; orange compressiceps.
• Family: Cichlidae.
• Subfamily: Pseudocrenilabrinae.
• Name pronunciation: al-toh-lam-proh-loh-gus kom-PRESS-ih-seps.
• Discovery: George Albert Boulenger, 1898.
• Maximum adult size: About 15 cm; males are usually larger.
• Water temperature and pH: 24 to 28 °C; pH 8.0 to 9.0.
• Appearance of the watercourse and surrounding vegetation: Clear, alkaline, highly mineralized lake water dominated by rocks; sparse aquatic vegetation.
• Typical tank mates: Neolamprologus leleupi, Neolamprologus cylindricus, Neolamprologus brichardi, Cyprichromis leptosoma, Synodontis petricola.
• Temperament and behavior: Territorial, discreetly predatory, and generally calm outside its own area; protective as a pair during breeding.
• Water depth: Rocky shoreline areas, often from a few metres to several dozen metres deep.
• Sexual dimorphism: Adult males are usually larger and more heavily built; juveniles are difficult to sex.
• Bottom structure and flow: Rocky bottom with cracks and rubble; generally clear, well-oxygenated water without a strong current.

In your aquarium

To maintain Altolamprologus compressiceps successfully, provide a mature aquarium with a stable rocky base, numerous shelters, and alkaline water whose parameters change very little. Avoid small fish that could be swallowed and monitor territorial interactions. Efficient filtration, regular water changes, and a measured meaty diet are essential. Conservation of this geographic form is also best achieved in a dedicated line, without hybridizing it with other compressiceps populations. With these precautions, this cichlid displays natural behavior and especially attractive mandarin coloration.