African Mono (Monodactylus sebae) Care Guide
Monodactylus sebae is a tall-bodied West African mono with black vertical bars and high fins, becoming fully marine as an adult.
Compiled by Aquairi from published sources · Published · Updated
Overview
Monodactylus sebae, the African or sebae mono, is a tall-bodied fish of the family Monodactylidae with black vertical bars and very high dorsal and anal fins. It is a schooling species that becomes fully marine as an adult.
Taxonomy
- Family: Monodactylidae
- Genus: Monodactylus
- Scientific name: Monodactylus sebae
- Common synonym: Sebae Mono
Habitat
FishBase records the species along the West African coast from Cape Verde to Angola, including the Canary Islands and Senegal. It is pelagic-neritic and occurs in marine, brackish and freshwater conditions, favouring estuaries, lagoons, marshes and the lower courses of rivers.
Tank requirements
- Minimum tank volume: 500 L
- Temperature: 24-28 °C (75-82 °F)
- pH: 7.5-8.5
- GH: 15-30 °dGH
- Group size: keep in groups of 5 or more
- Lifespan: 6-10 years
- Water type: brackish, trending marine with age
Diet
The African mono is an omnivore. FishBase reports it feeds on fish, shrimps, zooplankton and small invertebrates. In the aquarium it accepts a varied diet of meaty and plant-based foods, fed twice daily.
Compatibility
It is a peaceful schooling fish best kept in groups. Suitable tankmates include scats and archerfish of similar size; small fish should be avoided.
Breeding
FishBase notes distinct pairing behaviour, with females producing over 15,000 eggs that hatch within about 24 hours.
Conservation status
IUCN Red List: Not Evaluated (per FishBase).
African Mono (Monodactylus sebae) Breeding Guide
Overview
Monodactylus sebae, the African or Sebae mono, is a tall-bodied euryhaline shoaler of the eastern Atlantic, ranging from the Canary Islands south to Angola. It inhabits fresh, brackish and marine waters, especially mangrove swamps, estuaries and lagoons, and is widely kept in brackish and saltwater aquaria. It has only very rarely been bred in captivity.
Sexing
No reliable external sexing characteristics are documented, which contributes to the rarity of successful breeding.
Spawning Behavior & Trigger
Detailed spawning behaviour is not documented in accessible sources. As a euryhaline species whose adults occupy brackish-to-marine habitats, reproduction is associated with open coastal and estuarine waters rather than confined aquarium conditions, which is consistent with how seldom captive spawning is reported.
Common Challenges
Although the species is hardy and easy to keep, its shoaling requirement (groups of five or more), the move toward marine-strength water in adults, its large adult size and the absence of repeatable spawning data make breeding impractical for most aquarists. It is maintained as a display shoal rather than for reproduction.