Callochromis melanostigma XL (Callochromis melanostigma) — XL

Overview

The Callochromis melanostigma is a striking Tanganyika cichlid for experienced aquarists, prized for its sandy-bottom habitat, elegant shape, and specialized care needs. Endemic to Lake Tanganyika, this species (adult size around 15 cm) thrives in hard, alkaline water and rewards dedicated keepers with fascinating mouthbrooding displays and graceful, sand-sifting behaviour. With its slender body and subtle beauty, C. melanostigma is a prized choice for advanced Tanganyikan biotope aquariums.

Appearance

Callochromis melanostigma displays a slender, streamlined body with subtle coloration ranging from pale silver-grey to golden-beige, often with iridescent highlights on the scales and gill covers. Males develop more intense colours, especially during breeding, with hints of blue or violet on the head and fins. The body is laterally compressed and elegantly proportioned, with large eyes adapted for detecting prey in sandy substrates. The overall appearance is both graceful and functional, typical of Tanganyikan sand-dwellers.

Natural Habitat

This species is endemic to Lake Tanganyika, where it inhabits sandy bottoms near rocky areas at moderate depths. The lake's ancient, stable chemistry—characterised by high mineral content, exceptional clarity, and warm temperatures—has shaped the evolution of hundreds of endemic cichlid species. In nature, Callochromis melanostigma forage on sandy substrates, using specialized sensory pits to detect small invertebrates and crustaceans buried in the sand.

Aquarium Setup

Recreate a Tanganyikan sand-dwelling biotope with a fine sandy substrate (5–10 cm deep), open bottom space, and some rock cover to provide visual barriers and shelters. Use minimal decor to allow ample swimming and foraging area. Ensure stable water chemistry: pH 7.8–9.0, hard water (GH 12–20°), and a temperature of 24–28°C. A minimum of 250 litres is recommended, with larger tanks supporting additional tankmates. Provide strong filtration, regular water changes, and moderate lighting to bring out natural colours.

Water Parameters

Like all Tanganyikan cichlids, Callochromis melanostigma demands pristine, stable conditions. Aim for 24–28°C, pH 7.8–9.0, and high hardness. Conduct weekly partial water changes (20–30%) to maintain low nitrate levels and replenish essential minerals. Use a high-quality filter rated well above the tank volume, and consider adding crushed coral or Tanganyikan salts to buffer water chemistry. Stability is critical—avoid sudden fluctuations in temperature or pH.

Feeding

In the wild, Callochromis melanostigma feeds primarily on small invertebrates, crustaceans, and insect larvae buried in sandy substrates. In captivity, offer a varied carnivorous diet: high-quality cichlid pellets or flakes supplemented with frozen and live foods such as mysis, brine shrimp, krill, and other small meaty foods. Occasional vegetable matter is acceptable but not essential. Feed small portions once or twice daily. A balanced, protein-rich diet supports vibrant coloration, healthy growth, and successful breeding.

Behaviour

This species is semi-aggressive, with males becoming territorial especially when defending spawning territories or courting females. Outside breeding periods, Callochromis melanostigma are relatively peaceful and spend much of their time sifting through sand in search of food. Watching their graceful foraging behaviour is one of the highlights of keeping this species. Provide ample space and visual barriers to reduce aggression.

Tank Mates

Suitable companions include other Tanganyika cichlids of similar size and temperament, non-aggressive Tanganyika shell dwellers (only if space is ample), robust catfish such as Synodontis species, and species that occupy different tank zones and tolerate hard, alkaline water. Avoid small fish that may be bullied or eaten, highly aggressive large cichlids, fin-nipping species, soft-water fish, or very timid species. Careful planning and adequate space ensure a harmonious Tanganyikan sand-dwelling community.

Breeding

Callochromis melanostigma is likely a maternal mouthbrooder typical of Tanganyikan cichlids. Provide a stable pair, excellent water quality, and a quiet tank with sandy substrate and spawning territory. Females brood eggs and fry in the mouth for about 3–4 weeks, during which time they do not eat. Fry can be fed newly hatched brine shrimp or specialist fry foods once released. Maintain excellent water quality and stable Tanganyikan conditions to support successful breeding.

Why Buy from Tropical Fish Co

Tropical Fish Co is a premier UK supplier of rare African cichlids for sale UK, including the elegant Callochromis melanostigma. Every fish is quarantined, expertly acclimated, and dispatched with detailed care instructions. Our experienced team is passionate about Lake Tanganyika cichlids and ready to support your breeding projects and aquarium goals. Order online today for fast, reliable delivery and experience the quality and service that make Tropical Fish Co the trusted choice for specialist freshwater fish for sale UK.