Scheel's Killie (Fundulopanchax scheeli)

Species Overview

Scheel's Killie is a small, colourful West African killifish best treated here as Fundulopanchax scheeli. You may still see the older trade and supplier name Aphyosemion scheeli; that synonym is useful for matching the Petra stock label, but the reviewed listing now follows FishBase, the British Killifish Association and specialist aquarium references that use Fundulopanchax scheeli.

This listing is for young fish supplied at approximately 3-4 cm. Plan for an adult fish around 6 cm total length, not the old 3 cm guidance that was left in the hidden care data. It is still a compact killifish, but it deserves a stable, covered, planted aquarium with gentle flow, small foods and carefully chosen tank mates.

Name, Range and Habitat

FishBase places Fundulopanchax scheeli in tropical freshwater habitats of the lower Cross River system in south-eastern Nigeria, with an additional record from the Ndian River in south-west Cameroon. The AKA/WAK reference notes that aquarium specimens were part of the original description and that the known distribution is a fairly small area east of the lower Cross River.

In the wild, the species is associated with brooks and small streams in coastal rainforest and forested savanna. That tells us how to keep it: quiet water, cover, soft edges, plants, roots, leaf litter where appropriate and no rough, brightly lit, fast-flow display. FishBase also records it as not seasonal, so it should not be written as a strict annual killifish with dry-egg care by default.

Appearance and Display Value

Mature males are the reason many killifish keepers remember this species. The British Killifish Association describes blue-green to green-grey sides with red speckling, coloured unpaired fins and orange in the caudal and anal fins. The exact colour expression varies with strain, mood and maturity, but settled males can look jewel-like in a shaded planted aquarium.

Females are plainer, usually brownish with smaller red markings, and young fish may arrive less coloured than the best adult reference photos. Good food, stable water and low stress matter more than intense light. In a bare bright tank the fish often hide and the colours look weaker; in a calm planted setup with darker shelter, the same fish usually look far better.

Aquarium Setup

A tight-fitting lid is essential. Killifish can jump through surprisingly small gaps around cables, pipework and feeding holes. For a pair, trio or small group, a mature planted aquarium of about 45 litres or more is a good practical target, while experienced breeders may use smaller species boxes only when they can keep water quality very stable.

• Use fine plants, moss, roots and floating cover so each fish can retreat.
• Keep flow gentle; sponge filters or baffled outlets are ideal.
• Use a darker natural substrate or shaded areas to help the fish feel secure.
• Avoid sharp decor and avoid large open bright spaces.
• Keep the tank mature before adding the fish; ammonia and nitrite must stay at zero.

Botanicals such as Indian almond leaves or alder cones can be useful if you already understand how they affect your water. They are not required, but they can help create the sheltered rainforest-brook feel this species prefers.

Water Parameters

The supplier range is 22-26 C, pH 6.5-7.5 and moderate hardness. FishBase also lists 22-26 C, while Killi.co.uk breeding reports for F. scheeli scheeli often sit around 20-23 C in neutral to moderately soft acidic water. For everyday display care, aim for stable, clean water rather than chasing a single number.

• Temperature: 22-24 C preferred; 22-26 C supplier/FishBase range.
• pH: around 6.5-7.2 is a sensible target; avoid sudden swings.
• Hardness: soft to moderately hard water is tolerated, but softer water suits breeding work better.
• Water quality: ammonia 0, nitrite 0 and low nitrate.

Acclimate slowly, especially if your tap water is much harder or warmer than the holding water. Small killifish can be hardy once settled, but abrupt changes after delivery are still risky.

Feeding

Scheel's Killie is a small carnivorous micro-predator. Offer suitably sized live and frozen foods such as daphnia, cyclops, baby brine shrimp, mosquito larvae, grindal worm and small bloodworm where appropriate. Fine soft granules or micro-pellets may be accepted once settled, but live and frozen foods are the best way to build condition and colour.

Feed small portions and watch each fish. Fast community fish can take the food first, leaving killifish underfed even when the tank looks well fed. Remove uneaten rich foods quickly, especially in small planted tanks.

Temperament and Tank Mates

Aquarium Glaser describes F. scheeli as beautiful and breedable, but warns that community choices must be made carefully. That matches our recommendation: this is best as a species-focused pair, trio or small group in a calm planted aquarium. It can work with very peaceful, similarly sized fish in a larger mature tank, but it is not for a busy mixed display.

Avoid fin nippers, aggressive dwarf cichlids, large fish, fast danios, pushy barbs and anything that will dominate feeding. Tiny peaceful rasboras, very gentle small tetras or quiet bottom dwellers can be considered only where water requirements match and the tank has enough cover. Dwarf shrimp may be harassed or eaten, especially shrimplets.

Breeding Notes

This is a non-annual killifish, not a species where the default advice should be to dry every egg. Killi.co.uk reports successful breeding with spawning mops and long-term setups where fry appear with the adults. Reports also include moderately soft acidic or neutral water around 20-23 C, with several keepers rating breeding as easy once the adults are settled.

For a focused attempt, condition adults with small live foods and provide Java moss, fine plants, top mops, bottom mops or peat fibre. Eggs can often be collected and water-incubated, while some keepers use peat-style methods. Fry are small and need tiny first foods, then newly hatched brine shrimp as they grow. The safest route is patient species-tank husbandry rather than hoping fry survive in a busy community aquarium.

Common Mistakes

• Leaving the aquarium uncovered or accepting small lid gaps.
• Using the supplied 3-4 cm size as the adult size instead of planning for about 6 cm.
• Keeping the fish in bright, bare, high-flow community conditions.
• Adding tank mates that outcompete them for food.
• Writing the species as a strict annual killifish and giving dry-egg advice as the only method.
• Confusing the older Aphyosemion scheeli label with a separate fish from Fundulopanchax scheeli.

Who This Fish Suits

Scheel's Killie suits keepers who enjoy planted aquariums, small foods and subtle behaviour. It is a strong choice for a calm species tank or a carefully planned soft-water display. It is less suitable for uncovered tanks, hard-water beginner communities, bright aquascapes with no shelter or aquariums built around large active fish.

Photo, Size and Delivery Notes

The exact Petra/source photo is included in the gallery so you can judge the fish honestly, while the existing aquarium visuals remain for planted-tank context. Your fish may arrive as young stock around 3-4 cm and should colour up further with maturity, diet and low-stress surroundings.

Eligible livestock orders are packed carefully and supported by the Tropical Fish Co Live Arrival Guarantee. Please be ready to receive the parcel, acclimate slowly and move the fish into a mature, covered aquarium with matching water conditions. If a current welcome discount is available on the site, use it at checkout according to the published code terms.

Sources Used For This Listing

Care and identity notes were checked against FishBase for accepted naming, range, maximum size, temperature and non-seasonal status; the AKA/WAK reference for synonym history, population notes and lower Cross River distribution; the British Killifish Association for appearance notes; Killi.co.uk for breeding reports; Aquarium Glaser for community-care cautions; Petra Aqua for supplied size, pH, hardness and stock photo.