Plumed lyretail
Fundulopanchax filamentosus
Also known as Plumed lyretail killifish, Filament killie, Aphyosemion filamentosum
Care at a glance
- Temperature
- 68–75°F (20–24°C)
- pH
- 6.0–7.0
- Adult size
- 2.4 in (6 cm)
- Minimum tank
- 20 gal (75 L)
- Temperament
- Mostly peaceful
- Social behavior
- Social
- Swim level
- Middle
- Difficulty
- Medium
- Breeding
- Medium
- Rarity
- Rare
- Origin
- Native to shallow forest and savanna waters in Togo, Benin, and southwestern Nigeria in West Africa.
- Family
- Nothobranchiidae
Overview
A trio or small harem does well in a planted 75 litre species tank at 20 to 24 C and soft, slightly acidic water around pH 6.0 to 7.0. Males show off to each other but rarely cause real harm when there is room and cover. Feed live and frozen foods such as bloodworm, white worm, brine shrimp, and daphnia, with some dry food accepted. Spawn on fine plants or coconut fibre and incubate the eggs damp.
In the wild
It occupies small, often shaded pools, ditches, and slow streams in the coastal lowlands of West Africa. Males are bright, with rows of red spots on a blue-green body and extended lyre-shaped tail points, while females are tan. Give it a well planted, dimly lit tank with floating cover and a firm lid.
Good to know
Fundulopanchax filamentosus is a non-annual killifish that lives longer than the true annual species and does not need its eggs to dry out completely. It is a switch spawner, able to lay eggs on plants or in the substrate depending on conditions. Eggs are usually incubated damp for six to ten weeks before wetting triggers hatching.
Did you know
It can spawn either on plants or buried in the bottom, hedging its bets so at least some eggs survive whether the pool dries out or not.
Where to buy
Some links may not be the exact species or variety.
- Dan's Fish Freshwater fish, shrimp and snails with a live arrival guarantee
- The Wet Spot Tropical Fish Large freshwater selection from a longtime Portland fish store
…or ask your local fish store.
Appears in
Keeping Plumed lyretail?
Track water tests, reminders and stocking fit.
Related species

Steel Blue Killifish
Fundulopanchax gardneri2.2 in (5.5 cm)21 gal (80 L)70–79°F (21–26°C)
Blue gularis
Fundulopanchax sjoestedti4.7 in (12 cm)21 gal (80 L)72–79°F (22–26°C)
Bluefin Notho
Nothobranchius rachovii2.4 in (6 cm)21 gal (80 L)68–75°F (20–24°C)
Gunther's nothobranch
Nothobranchius guentheri2.4 in (6 cm)11 gal (40 L)72–77°F (22–25°C)Gery's killi
Scriptaphyosemion geryi2.6 in (6.5 cm)14 gal (54 L)72–79°F (22–26°C)
Patrizi's notho
Nothobranchius patrizii2.2 in (5.5 cm)11 gal (40 L)72–79°F (22–26°C)