Spothead Hap, Red-Spotted M (Ctenochromis horei) — 5-6cm

Overview

The spothead hap, scientifically classified as Ctenochromis horei, represents a distinctive and relatively uncommon East African cichlid species originating from the Lake Tanganyika basin and associated waters. This striking species is characterised by its red spotting, lively personality, and compact size, making it a fascinating addition to specialised hard-water African cichlid setups. Unlike many larger, more aggressive African cichlids, Ctenochromis horei reaches a modest maximum size of just 3.5 cm, placing it among the smaller haplochromine species and making it suitable for smaller aquariums with compatible tankmates. The species exhibits semi-aggressive temperament and thrives in hard, highly alkaline water chemistry replicating the unique rift lake environment. With its bold markings, active behavior, and relatively peaceful nature compared to many African cichlids, the spothead hap offers dedicated aquarists seeking rare, specialist species a rewarding opportunity to maintain a unique and visually appealing East African cichlid. Now available for sale UK-wide, this species is best suited to experienced keepers familiar with rift lake water chemistry and cichlid behavior.

Appearance and Physical Characteristics

Ctenochromis horei displays attractive patterning characterised by red spotting distributed across the body, head, and fins, creating a distinctive appearance that gives the species its common name "spothead hap." The base body coloration ranges from grey to olive-green, with the intensity of red spotting varying based on individual genetics, diet, mood, and breeding condition. Mature males typically develop more intense coloration and spotting than females, particularly during courtship and territorial displays. Despite its common classification as a "hap" (haplochromine cichlid), the species reaches a remarkably small maximum size of just 3.5 cm, making it one of the smallest cichlid species commonly available and ideally suited to smaller aquariums. The body is compact and robust, with a relatively deep profile and well-developed fins. The overall appearance is lively, colourful, and engaging, particularly in well-conditioned specimens maintained in optimal hard-water conditions.

Natural Habitat and Distribution

In the wild, Ctenochromis horei inhabits the Lake Tanganyika basin and associated waters in East Africa, where it occupies diverse microhabitats including rocky shorelines, sandy areas, and vegetated margins. Lake Tanganyika is characterised by exceptionally stable water chemistry with very high pH (7.5-8.8), elevated mineral content, high carbonate hardness, and warm, stable temperatures between 24-28°C. The lake's crystal-clear water provides excellent visibility and exceptionally high oxygen saturation. Natural diet likely consists of small invertebrates, zooplankton, and microscopic organisms, reflecting the species' carnivorous/micro-predatory feeding strategy. The species is relatively peaceful compared to many Tanganyikan cichlids, though it exhibits typical cichlid territoriality during breeding. Replicating the unique hard-water rift lake conditions in captivity is essential for long-term health and successful maintenance.

Aquarium Setup and Tank Requirements

A minimum aquarium volume of 75 litres is recommended for Ctenochromis horei, with larger setups providing better stability and space for territorial behavior. The substrate should consist of fine sand or smooth gravel to accommodate natural foraging behavior. The aquascape should feature smooth rocks and caves arranged to create territorial boundaries and hiding places, with open swimming areas in the foreground and midwater zones. Filtration must be robust and capable of maintaining pristine water quality, as rift lake cichlids are sensitive to accumulating organic waste. Water chemistry must be maintained at hard, highly alkaline levels with pH between 7.5-8.8 and high carbonate hardness (KH); use appropriate rift lake mineral salts or buffers to achieve and maintain these parameters. Weekly water changes of 25-30% with chemistry-matched water are essential to prevent parameter drift. Excellent oxygenation should be provided through surface agitation or airstones, and moderate water movement is preferred.

Feeding and Nutrition

Ctenochromis horei is likely a carnivorous/micro-predatory species requiring a protein-rich diet to thrive in captivity. Offer a varied diet consisting of high-quality small cichlid pellets designed for dwarf African cichlids as the staple, supplemented with frozen or live foods such as brine shrimp, daphnia, mysis shrimp, cyclops, and other appropriately sized meaty foods. The species has a small mouth suited to small food items, so avoid large pellets or foods that cannot be easily consumed. Use vegetable matter only sparingly unless specific dietary information confirms herbivorous tendencies, as most small Tanganyikan cichlids are primarily carnivorous. Feed once or twice daily in small portions that can be consumed within 2-3 minutes, ensuring all individuals receive adequate nutrition. Monitor feeding behavior regularly to ensure shy or subordinate fish are eating adequately. Dietary variety and high-quality foods are essential for maintaining health, coloration, and breeding condition.

Behaviour and Social Structure

Ctenochromis horei exhibits semi-aggressive behavior typical of small haplochromine cichlids, with territoriality increasing during breeding periods. Outside of spawning, the species is relatively peaceful and can coexist with carefully selected tankmates in appropriately configured setups. Males may establish small territories centered on caves or rocky structures, displaying to attract females and defending against rival males. The species is diurnal and actively swims throughout the aquarium, foraging across substrate and rockwork in search of food. Social dynamics are typical of haplochromine cichlids, with dominant individuals displaying more intense coloration and subordinate fish exhibiting subdued tones. The species is best kept in small groups or pairs in appropriately sized aquariums to allow natural social behavior while minimising serious aggression. Overall temperament is lively, engaging, and suitable for specialist rift lake setups.

Compatible Tank Mates

Due to the specialised water chemistry requirements and compact size of Ctenochromis horei, tankmate selection requires careful consideration. Ideal companions include small, similarly sized, non-aggressive fish from compatible hard-water environments, and potentially species-only or carefully selected small cichlids if temperament allows. Avoid small fish that can be eaten, very timid species that may be stressed by the cichlid's activity, slow-moving long-finned fish susceptible to nipping, and overly aggressive cichlids that may provoke conflict or outcompete the spothead hap for food. Due to the rarity and specialist nature of this species, many experienced keepers recommend species-only setups or carefully curated Tanganyikan biotope aquariums with confirmed compatible species. The key to successful tankmate integration is ensuring all inhabitants share similar hard, alkaline water requirements and compatible temperaments.

Breeding in Captivity

Ctenochromis horei is typically a maternal mouthbrooder, as with many haplochromine cichlids. Successful breeding requires a stable, compatible pair, excellent water quality maintained at optimal hard-water parameters, and the provision of rockwork and caves for territories. Conditioning the pair with high-quality live or frozen foods may help stimulate breeding behavior. Males display and court females, and spawning typically occurs in or near the male's territory. The female collects fertilised eggs in her mouth and incubates them for approximately two to three weeks, during which time she does not eat and should be left undisturbed to prevent stress-induced egg loss. Fry are released once fully developed and capable of swimming freely. Raising fry requires appropriate microscopic foods initially, transitioning to newly hatched brine shrimp and finely crushed foods as they grow. Maintaining stable, pristine hard-water chemistry throughout the breeding and fry-rearing process is essential for success.

Why Buy from Tropical Fish Co

At Tropical Fish Co, we specialise in sourcing rare and specialist species like Ctenochromis horei, ensuring every fish we supply is healthy, well-acclimated, and ready to thrive in hard-water rift lake setups. Each spothead hap undergoes thorough quarantine and health screening to guarantee optimal condition upon arrival. Our expert team provides comprehensive care guidance specific to East African cichlids, helping you achieve and maintain the hard, highly alkaline water chemistry this species demands for long-term success. We use professional-grade packing methods with insulated containers and appropriate heat packs to ensure safe delivery across the UK, regardless of weather conditions. Whether you're establishing a specialised Tanganyikan biotope, expanding your rare cichlid collection, or seeking a unique and colourful species for a hard-water setup, our commitment to quality livestock, expert support, and ethical sourcing makes Tropical Fish Co your trusted partner in freshwater fishkeeping excellence.