Pearl-Lined Lamprologus, Fourspined (Lamprologus tetracanthus) — 4,5-5,5cm

Overview

The Pearl-Lined Lamprologus, scientifically known as Lamprologus tetracanthus, is a captivating small tanganyika cichlid that offers big personality in a compact package. This lesser-known gem from Lake Tanganyika displays intricate pearl-like markings across its body—shimmering spots and lines that catch the light beautifully—earning it the common name "fourspined lamprologus" due to the spiny rays on its dorsal fin. Growing to just 5.5cm at maturity, this species is one of the smallest Tanganyikan cichlids suitable for specialized setups from 80 litres upward. Available for sale UK through specialist African cichlid suppliers, the Pearl-Lined Lamprologus appeals to aquarists seeking a nano-sized Tanganyikan species with full cichlid personality, breeding behavior, and the demanding water chemistry typical of lake tanganyika cichlid species.

Appearance

This diminutive cichlid displays intricate patterning: a base color of grey-brown to olive-brown covered with numerous small white to blue-white spots and short lines creating a pearl-like shimmer. The body is elongated and somewhat cylindrical, built for maneuvering through rocky crevices. The dorsal fin shows four prominent spiny rays (hence "tetracanthus"), and males typically display more intense coloration and longer finnage than females. The eyes are relatively large for the body size, and the overall appearance is delicate yet purposeful. Breeding condition intensifies the pearl markings and may add yellow or orange tinting to fins. Despite the small size, this is an assertive, confident fish with visible personality.

Natural Habitat

In Lake Tanganyika, L. tetracanthus inhabits rocky shorelines and intermediate zones, typically at moderate depths where it shelters among crevices and caves. The natural environment offers crystal-clear, highly alkaline, very hard water with stable tropical temperatures and exceptional water quality. These small cichlids are territorial despite their size, claiming small caves or crevices as home bases from which they defend against intruders and ambush small prey. The aquarium should replicate this rocky environment with ample hiding places and clean, well-oxygenated water matching Tanganyika's demanding chemistry.

Aquarium Setup

An appropriate aquarium for pearl lined lamprologus should emphasize rockwork and caves. An 80-litre tank suits a pair or small group, though larger setups allow for keeping with other small Tanganyikan species. Use fine sand or smooth fine gravel substrate, and construct elaborate rockwork creating numerous small caves, crevices, and tight shelters. These fish need secure hiding places where they can retreat and spawn. Powerful filtration maintaining crystal-clear water is essential—aim for turnover of 8-10 times tank volume per hour. Use crushed coral substrate or add limestone rocks to buffer pH naturally, maintaining the hard, alkaline chemistry Tanganyika species demand. Regular large water changes (30-40% weekly) with properly prepared, mineral-rich water keep parameters stable.

Feeding

This carnivorous species requires protein-rich foods in appropriately small sizes. Feed quality micro pellets formulated for small cichlids, supplemented with small frozen foods such as cyclops, baby brine shrimp, daphnia, and finely chopped mysis. Offer small portions 2-3 times daily, providing only what can be consumed within 1-2 minutes. The small mouth size means food particle size matters—use foods smaller than you'd offer to larger cichlids. Varied high-protein nutrition supports health, coloration, and breeding condition. Avoid large or hard food items the fish cannot consume comfortably.

Behaviour

Despite their small size, pearl-lined lamprologus are surprisingly territorial and assertive. Individuals claim caves and defend them vigorously against intruders, including fish several times their size. Males establish territories centered on suitable spawning caves and court females with fin displays and gentle leading behavior. Aggression is usually ritualized with minimal physical damage, though in very small tanks, dominant individuals may harass subordinates excessively. The species is most natural when kept as a pair or small group with adequate caves for each individual. Watching them dart in and out of rocky crevices, inspect territories, and interact socially provides endless interest in a dedicated Tanganyikan aquarium.

Tank Mates

Suitable companions must share the demanding water requirements and be appropriately sized. Other small Tanganyikan cichlids of similar temperament work well—consider other small Lamprologus species, shell-dwellers, or small Julidochromis. Non-aggressive Tanganyikan catfish and snails are also compatible. Avoid large aggressive cichlids that will prey on or bully the small lamprologus, as well as fin-nipping species or very peaceful, slow-moving fish easily dominated. Soft-water community fish are entirely unsuitable due to incompatible water chemistry. In a well-planned small tanganyika cichlids for sale uk community, diverse nano-sized species can coexist beautifully.

Breeding

Lamprologus tetracanthus is a cave spawner typical of Tanganyikan lamprologines. Provide multiple tight caves or crevices constructed from rocks, PVC pipe, or terracotta pot fragments. A compatible pair will select a cave, and the female deposits 20-50 eggs on the cave ceiling or walls. Both parents guard the eggs and fry, though the female takes primary care duties. Eggs hatch in 2-3 days, and fry become free-swimming after about a week. Fry are tiny and require infusoria or liquid fry food initially, graduating to newly hatched brine shrimp as they grow. Maintaining stable, pristine alkaline water is critical for successful fry development. Parents may spawn repeatedly, creating a small colony over time.

Special Considerations

The primary challenge with this species is maintaining the demanding hard water fish for aquarium chemistry Tanganyika species require. pH must remain consistently above 7.8, ideally 8.5+, with very hard water. This requires dedicated buffering, careful water change procedures, and regular testing. Small cichlids are also more sensitive to water quality lapses than larger species—maintain zero ammonia and nitrite with nitrate below 20ppm. Despite their tiny size, provide adequate territory space, as crowding increases aggression. With appropriate conditions, this species is hardy, long-lived, and highly rewarding for dedicated Tanganyikan enthusiasts.

Why Buy from Tropical Fish Co

Tropical Fish Co specializes in supplying quality african cichlids for sale uk, including rare and specialist species like Lamprologus tetracanthus. We source from reputable breeders experienced with Tanganyikan species, ensuring healthy, correctly identified fish conditioned on appropriate foods. Every specimen is quarantined and carefully monitored before dispatch. We provide comprehensive care information covering african cichlids lake tanganyika setup requirements, water chemistry management, and breeding guidance to support your success. Our knowledgeable team is passionate about African cichlids and available to answer questions and provide ongoing support. With secure nationwide delivery and a commitment to customer education, Tropical Fish Co is your trusted source for specialized buy cichlids online uk projects.