Red-Chinned Aphyosemion (Aphyosemion calliurum) — 3-4cm

Overview

The Red-Chinned Aphyosemion (Aphyosemion calliurum), also known as the Banner Lyretail, is a beautifully coloured West African killifish native to the coastal rainforest waters of southern Benin, southern Nigeria, and south-western Cameroon. Reaching 4cm in length, this peaceful species is renowned for its elegant lyre-shaped finnage, striking red throat patch, and vibrant body colouration. Ideal for quiet planted species tanks, Aphyosemion calliurum thrives in soft, slightly acidic water with live foods and subdued lighting. Available for sale UK from Tropical Fish Co, this captivating killifish rewards dedicated keepers with spectacular displays and fascinating breeding behaviour.

Appearance and Coloration

The Red-Chinned Aphyosemion displays stunning colouration with a slender body adorned in shimmering blues, greens, and yellows. Males are characterised by their distinctive red throat patch (the "red chin" that gives the species its common name) and elongated, lyre-shaped caudal fin. The dorsal and anal fins are often edged in red or orange, creating a striking contrast against the metallic body. Females are smaller, plumper, and less intensely coloured. Under subdued lighting in a planted tank with dark substrate, the colours become even more vibrant and eye-catching.

Natural Habitat

Aphyosemion calliurum occurs in coastal rainforest waters of West Africa, from southern Benin and southern Nigeria to south-western Cameroon. These fish inhabit shallow, slow-moving streams, swamps, and seasonal pools characterised by soft, acidic, tannin-stained 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; in the dry season, some habitats may experience reduced water levels.

Aquarium Setup

A minimum 40-litre aquarium is recommended for a pair or small group of Red-Chinned Aphyosemion. Use a fine sand substrate with plenty of live plants such as Cryptocoryne, Java moss, Microsorum, and floating species like Salvinia or Ceratopteris. Add dried Indian almond leaves or alder cones to release tannins and replicate the natural blackwater environment. Provide spawning mops or fine-leaved plants for egg deposition. Lighting should be subdued, and filtration gentle to avoid strong currents. A secure, tight-fitting lid is essential, as killifish are excellent jumpers.

Feeding and Diet

As a carnivore, Aphyosemion calliurum 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, bloodworms, and grindal worms daily. High-quality micro-pellets or flakes 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, especially to enhance the distinctive red chin.

Behaviour and Temperament

The Red-Chinned Aphyosemion is a peaceful, lively 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, especially during courtship, 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 calliurum is best kept species-only or with very small, peaceful, non-nippy fish that share similar water requirements. Suitable companions include small peaceful top/midwater fish that tolerate warm, soft, acidic water, such as tiny rasboras or Microdevario in larger, heavily planted tanks. Avoid large fish, aggressive species, fin-nippers, fast boisterous community fish, and large predatory invertebrates. A calm, quiet environment is essential for this delicate killifish to thrive and display its full range of colours.

Breeding

This egg-scattering annual/non-annual style killifish 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 separately in moist or water-based conditions depending on the method and strain. 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 and fry predation. Breeding success is highest in soft, slightly acidic water.

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 calliurum. 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 West African rainforests into your home aquarium.