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Mozambique tilapia

Oreochromis mossambicus

Also known as Mozambique mouth-breeder, Mouth-brooder, Mozambique mouth-brooder, tilapia mosambica

Fishes › Cichlids (Cichliformes) › Cichlidae (Cichlids)

The Mozambique tilapia (Oreochromis mossambicus) is an oreochromine cichlid fish native to southeastern Africa.

Aquarium hobby
Experience: Easy
Mozambique tilapia
Photo: Greg Hume, CC BY-SA 3.0, via Wikimedia Commons
FamilyCichlids
Record lifespan11 years
Adult lengthup to 15.4 in
WaterFreshwater, brackish

Care at a glance

Species-specific aquarium care

  • Tank: At least 72 in long and 27 in front to back for one adult (adults commonly reach about 13.8 in / 35 cm).
  • Water: Freshwater (tolerates brackish).
  • Temperature: 63–95°F (range recorded for this species).
  • Layout: Uses both the bottom and open water: give open swimming space plus cover near the substrate.
  • Diet: A substrate browser: offer sinking foods and let it sift the bottom; use soft sand if it digs. FishBase classes it as a herbivore.

Calculated from this species' own FishBase record: tank size from its typical adult length and swimming zone, water values from its recorded ranges. The group guide below fills in general care.

Care guide

Species care notes

  • Tank: a base of at least 83 × 24 in (roughly 200 US gallons); space needed is rated “very large tank”.
  • Water: a fairly wide range, from slightly acidic to slightly alkaline, 70–81 °F, pH 6.2–8.5, 10–30 dGH.
  • Behaviour: temperament predatory.
  • Difficulty: Moderate (Seriously Fish rating).

Short excerpts from the species profile:

  • Diet: “Very unfussy and will eat most foods offered.”
  • Tankmates: “A very robust species that is territorial when spawning but is otherwise quite peaceful.”

From the Seriously Fish profile for this species, which has the full habitat, maintenance, diet, behaviour and breeding write-up 167

Group care guide

West, Central and southern African river cichlids and tilapias

Applies to most species in this group. Habitat: African rivers, streams and lakes. Individual species can differ, so compare with the species numbers above and the linked sources.

Housing & setup

  • Kribensis and other dwarf West Africans do well in planted 20–30 gallon tanks with caves and neutral water.
  • Tilapias and Serranochromis grow large and are often kept in ponds or for aquaculture.

Sources 117119164

Climate & lighting

Water75–82°F

Sources 117119164

Diet

  • Omnivorous pellets plus frozen foods; tilapias need plant matter.

Sources 117119164

Health watch

  • Several tilapias are invasive and regulated by many states; never release.

Sources 117119164

Understanding the animal

About this animal

About this animal

Dull colored, the Mozambique tilapia often lives up to a decade in its native habitats. It is a popular fish for aquaculture.

Quoted from the Wikipedia article “Mozambique tilapia” (CC BY-SA 4.0) 174

In the wild

In the wild

From this species’ own FishBase record (habitat, bottom type, water and breeding data), not its family. Good care copies these conditions.1

Where it livesLives in freshwater and brackish water, in rivers and streams, lakes, rice paddies, estuaries. Uses both the bottom and open water. Adults thrive in standing waters.
Water it lives inFreshwater / brackish water, depth 1–12 m.
ClimateTropical climate.
Wild dietBrowsing on substrate.
Behavior to plan forBreeding: external brooders.

What this means for care

  • It tolerates or needs brackish water; check salinity needs before setup.
  1. FishBase species summary: Oreochromis mossambicus
Native climate (measured)

Native climate (measured)

Warm-season highsabout 89°F (up to 98°F in the hottest sampled areas)
Cool-season lowsabout 51°F (down to 39°F in the coldest sampled areas)
Average temperature64–80°F across sampled records
Relative humidity59–76% on average (driest month about 60%)
Rainfallabout 935 mm a year

Measured at 1198 wild occurrence records sampled against WorldClim 2.1 climate data (1970–2000 averages). Air conditions in the range are ecological context, not enclosure settings: microhabitats such as burrows, leaf litter or basking rocks can be cooler, warmer or more humid.

From the sources

From the sources

Quoted from the matching sections of reputable sources for this exact species. Specialist databases are used first; Wikipedia (community-edited, CC BY-SA 4.0) only fills gaps. Other sources are short credited quotes.

OverviewThe Mozambique tilapia (Oreochromis mossambicus) is an oreochromine cichlid fish native to southeastern Africa. Dull colored, the Mozambique tilapia often lives up to a decade in its native habitats. It is a popular fish for aquaculture. Due to human introductions, it is now found in many tropical and subtropical habitats around the globe, where it can become an invasive species because of its robust nature. — Wikipedia (community-edited)
Where it livesHome ranges Population dynamics Growth parameters Max. ages / sizes Length-weight rel. Length-frequencies Mass conversion Recruitment Abundance Life cycle Reproduction Maturity Maturity/Gills rel. — FishBase
Social life and communicationMozambique tilapias often travel in groups where a strict dominance hierarchy is maintained. Positions within the hierarchy correlate with territoriality, courtship rate, nest size, aggression, and hormone production. In terms of social structure, Mozambique tilapias engage in a system known as lek-breeding, where males establish territories with dominance hierarchies while females travel between them. — Wikipedia (community-edited)
Wild dietMozambique tilapia are omnivorous. They can consume detritus, diatoms, phytoplankton, invertebrates, small fry and vegetation ranging from macroalgae to rooted plants. This broad diet helps the species thrive in diverse locations. — Wikipedia (community-edited)
ReproductionSpawns at the edge of the littoral terrace of lakes (, 2, 87, 6465 ), in sandy or muddy bottoms. — FishBase
Appearance and sizeMaximum length 39.0 cm sl male/unsexed; maximum published weight 1.1 kg; maximum reported age 11 years. — FishBase
BiologyAdults thrive in standing waters (, 12501 ). Inhabits reservoirs, rivers, creeks, drains, swamps and tidal creeks; commonly over mud bottoms, often in well-vegetated areas. Also found in warm weedy pools of sluggish streams, canals, and ponds. — FishBase

Data and studies

The numbers

The numbers

Each bar is what one source reports. Where several sources weigh in, the dashed gold band marks their average.

Maximum recorded lifespan

Highest reported11years
AnAge 16211
FishBase 1645

Longest recorded lifespan reported by each database; typical lifespans are usually shorter.

Typical adult weight

Average of sources30.9oz
AnAge 16221.9
FishBase 16439.9

Average adult body mass in each database (FishBase gives the maximum recorded weight).

Adult length

Average of sources14.6–15.4in
FishBase 16413.8–15.4
Seriously Fish species profiles 16715.4

Common length to maximum recorded length. Measured as standard length (snout to the base of the tail, not counting the tail fin). Fish in home aquariums often stay smaller than wild records.

Water temperature

Average of sources66.5–88°F
FishBase 16463–95
Seriously Fish species profiles 16770–81

Range the species tolerates in nature; aim for the middle.

Female maturity

Reported5.6months
AnAge 1625.6

pH

Reported6.2–8.5
Seriously Fish species profiles 1676.2–8.5

Water hardness

Reported10–30dGH
Seriously Fish species profiles 16710–30

Minimum tank footprint

Reported83in
Seriously Fish species profiles 16783

Seriously Fish recommends a tank base of at least 83 × 24 in (about 200 US gallons).

Veterinary & husbandry research

Veterinary & husbandry research

Peer-reviewed papers that mention this species alongside captivity, zoos, veterinary care or aquaculture. Some cover several species or mention it only in passing, so check the abstract. See all 89 on PubMed → 170

Sources for this sheet

  1. AnAge: The Animal Ageing and Longevity Database (Human Ageing Genomic Resources) Peer-reviewed researchCurated, referenced longevity and life-history records for thousands of species; maximum lifespans are often from zoo animals.
  2. FishBase (Froese & Pauly, eds.), version 24.07 Peer-reviewed researchThe global scientific database on fishes, maintained by a consortium of research institutions; every value is referenced.
  3. Seriously Fish species profiles Experienced keeper or breederLong-running aquarium reference written and peer-checked by experienced fishkeepers and ichthyologists; each profile covers habitat, tank size, water, diet, behaviour and breeding.
  4. Merck Veterinary Manual: Management of aquarium fish Zoo, university or veterinaryThe Merck Veterinary Manual: a standard veterinary reference written and reviewed by veterinary specialists.
  5. Merck Veterinary Manual: Types and features of aquatic systems Zoo, university or veterinaryThe Merck Veterinary Manual: a standard veterinary reference written and reviewed by veterinary specialists.
  6. Wikipedia (species article) Community referenceFree encyclopedia; useful overviews with their own citations. Intro text is quoted under CC BY-SA 4.0.
  7. PubMed (U.S. National Library of Medicine) Peer-reviewed researchIndex of peer-reviewed veterinary, zoo and husbandry research.
  8. iNaturalist (captive observations) Community referenceCommunity observation platform run by the California Academy of Sciences and National Geographic; observations marked captive show animals living in homes, zoos and aquariums.