Fish Farming in Nigeria: Costing a Catfish Cycle Honestly

12 June 2026 · 8 min read · AgroForth agronomy team

Catfish is the easiest livestock enterprise to start in southern Nigeria and one of the easiest to lose money on, because feed cost per kilogram of fish is unforgiving of sloppy management.

Pick the pond that matches your water source

Earthen ponds are cheapest per cubic metre but need suitable clay soil and reliable water. Concrete tanks cost more upfront and give tighter control over water quality and harvest. Tarpaulin tanks sit in between and suit rented land because they can be moved.

Whatever you choose, plan water exchange before stocking. Poor water quality, not disease, is what kills most first batches.

Stocking density and grading

Overstocking is the classic beginner error. Density has to match the water exchange you can actually sustain, not the number of fingerlings you can afford.

Catfish cannibalise. Grade the stock by size at least twice during the cycle — it costs a morning's work and protects a meaningful share of the batch.

Feed conversion is the whole business

Feed conversion ratio (kilograms of feed per kilogram of fish gained) drives profitability. Feed to satiation on a schedule, adjust for water temperature, and stop feeding when fish go off feed rather than pushing more pellets in.

Track feed used per tank in a notebook or in your farm finance record. Without that number, you cannot tell a good cycle from a bad one until the money is gone.

Break-even before you stock

Write down fingerling cost, total expected feed, water and power, labour, and mortality allowance. Divide by the kilograms you realistically expect to harvest. If that figure is close to the farm-gate price in your area, the cycle is not worth running at that scale — change the feed strategy or the sale channel first.

Frequently asked

How long is a catfish production cycle?

Table-size catfish typically take four to six months depending on stocking size, feed quality and water temperature.

What kills most first catfish batches?

Water quality problems from overstocking and insufficient water exchange, well ahead of disease.

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