Labarre's Aphyosemion (Aphyosemion labarrei) — 3-4cm

Overview

The Labarre's Aphyosemion (Aphyosemion labarrei) is a small, elegant African killifish native to the Congo Basin region of Central Africa. Reaching just 3.5cm in length, this peaceful nano species is prized for its beauty, fascinating breeding behaviour, and suitability for planted aquariums. With delicate colouration, lively personality, and captivating reproductive habits, Aphyosemion labarrei is a rewarding choice for dedicated killifish keepers. Available for sale UK from Tropical Fish Co, this rare species thrives in soft, clean water with live foods and subdued lighting.

Appearance and Coloration

Labarre's Aphyosemion displays subtle yet striking colouration with a slender, streamlined body adorned in soft blues, greens, and reds. Males are more intensely coloured than females, with elongated dorsal and anal fins that create an elegant silhouette. The finnage often features intricate patterns and iridescent highlights that shimmer under subdued lighting. Females are smaller, plumper, and more subdued in colour. In a well-planted tank with dark substrate and tannin-stained water, the colours become even more vibrant and eye-catching.

Natural Habitat

Aphyosemion labarrei inhabits shallow, slow-moving streams, swamps, and seasonal pools in the Congo Basin region of Central Africa. These biotopes are characterised by soft, acidic, tannin-rich water, dense vegetation, submerged roots, and leaf litter. Water flow is minimal, and the substrate consists of mud, sand, and organic debris. During the wet season, these fish spawn among fine-leaved plants or submerged vegetation; during the dry season, some populations may experience desiccation of their habitat, though breeding strategies vary by population.

Aquarium Setup

A minimum 20-litre aquarium is sufficient for a pair or small group of Labarre's Aphyosemion. Use a fine sand substrate with plenty of live plants such as Cryptocoryne, Java moss, Microsorum, and floating species like Limnobium or Salvinia. Add dried leaves (Indian almond or oak) to release tannins and replicate the natural blackwater environment. Provide spawning mops or fine-leaved plants for egg deposition. Lighting should be dim, and filtration gentle to avoid strong currents. A secure, tight-fitting lid is essential, as killifish are skilled jumpers.

Feeding and Diet

As a carnivore, Aphyosemion labarrei requires a varied, protein-rich diet to maintain health and colour. Offer small live or frozen foods such as daphnia, baby brine shrimp, mosquito larvae, grindal worms, and microworms daily. High-quality micro-pellets may be accepted, but live and frozen foods are essential for conditioning and breeding. Feed small portions twice daily, removing uneaten food promptly to maintain pristine water quality. Variety and freshness are critical for optimal health and vibrant colouration.

Behaviour and Temperament

Labarre's Aphyosemion is a peaceful, shy species that spends most of its time in the upper and middle water column among plants. Males may display to each other with flared fins and subtle posturing, but serious aggression is rare. These fish are most active during dawn and dusk, and they appreciate dimly lit aquariums with plenty of cover. They are not competitive feeders, so avoid housing them with boisterous or fast-moving species. In a well-planted species tank, they display natural behaviours and may spawn regularly.

Suitable Tank Mates

Aphyosemion labarrei is best kept in a species-only aquarium or with very small, calm fish that share similar water requirements. Suitable companions include tiny rasboras like Boraras species, Microdevario, or small peaceful fish that will not outcompete or harass the killifish. Avoid large fish, aggressive species, fin-nippers, and fast boisterous community fish. Very small fry or shrimp may be eaten. A calm, quiet environment is essential for this delicate killifish to thrive and display its full range of colours.

Breeding

This annual-style egg scatterer typically spawns in fine plants or mops. Condition a pair or small group with high-quality live foods, then provide spawning media such as Java moss or yarn mops. Eggs are often collected and incubated in moist peat or damp substrate for several weeks, depending on the population and method used. Some keepers leave eggs in water for non-annual methods. Fry are tiny and require infusoria or liquid fry food initially, graduating to newly hatched brine shrimp after a few days. Remove adults to prevent egg predation.

Why Buy from Tropical Fish Co

Tropical Fish Co is a trusted UK supplier of rare and specialist tropical fish, including hard-to-find killifish species like Aphyosemion labarrei. We guarantee healthy, well-conditioned stock, expert care advice, and secure nationwide delivery. Every fish is quarantined and inspected before dispatch, ensuring you receive only the finest specimens. Whether you're setting up a dedicated killifish tank or adding a rare species to your collection, Tropical Fish Co offers unmatched quality and customer service. Order online today and bring the beauty of Central African waters into your home aquarium.