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🐟 Aquaculture — Tilapia farming in Zimbabwe

Zimbabwe's leading farmed fish. Fast growing, tolerant of warm shallow water, and sold live or fresh at a strong price.

Aquaculture — Tilapia farming in Zimbabwe
Season / planting window
Stock Sep – Nov so the grow-out runs through the warm months; growth stalls below 20 °C in winter.
Best regions
Anywhere with reliable water — Kariba cage farms, Mashonaland dams and boreholes, lowveld ponds. Avoid cold highveld winters without greenhouse cover.
Spacing / population
Earth pond: 3–5 fish/m². Lined/tank system: 20–50 fish/m³ with aeration. Cages: 50–150 fish/m³.
Expected yield
3–8 t/ha per cycle in well-managed ponds; 250–400 g market fish in 6–8 months.

Stage by stage

Site, water & permits

Before you dig

  • Confirm year-round water: borehole, dam, weir or river abstraction — a fish farm cannot run dry for even a day.
  • Get ZINWA water abstraction rights and register with the Department of Livestock and Veterinary Services; an EMA certificate is required for larger units.
  • Test water: temperature 26–30 °C ideal, pH 6.5–8.5, dissolved oxygen above 4 mg/L.
  • Choose clay-loam soils that hold water; sandy sites need liners.

Fertiliser and chemicals

  • Fertiliser
    Agricultural lime (pond bottom)

    1 000–2 000 kg/ha · Dry pond, 2 weeks before filling

    Raises pH and alkalinity, hardens the bottom and kills pathogens.

  • Fertiliser
    Chicken or cattle manure (organic pond fertiliser)

    500–1 000 kg/ha then 200 kg/ha weekly · Before stocking and during grow-out

    Grows the plankton bloom that feeds fish naturally and cuts pellet cost.

Field tip

Buy only certified all-male (sex-reversed) fingerlings. Mixed-sex tilapia will breed in the pond and you will harvest thousands of tiny, unsellable fish.

The rest of this aquaculture — tilapia guide

  • 6 more stages, from land preparation through to storage
  • 8 more fertiliser, herbicide, pesticide and fungicide entries with rates
  • All field tips, plus the printable and downloadable version
  • Your own crop, cost and activity records in the FarmInvest app
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