Aquaculture investors: fish out of water

The refusal of both state and private investors to take good advice has left a trail of failed aquaculture projects across South Africa.

Which design is best?

The design of an aquaculture system is essential to the operation’s success, and should be appropriate to environmental conditions and staffing skills.

The best tilapia for aquaculture

Riverine tilapia species are more suitable to South African aquaculture conditions than lacustrine species.

Africa’s many tilapia species

The versatile tilapia is found all over Africa, but not all species are suitable for aquaculture production.

Generalist and specialist fish species

Not all fish species are suitable for aquaculture simply because they grow large in their natural habitat.

Aquaculture: claims vs reality

Production claims must be based on proven, long-term commercial results – they cannot be extrapolated.

Invest in rural aquaculture!

The SA government does not provide adequate support or information to rural people who want to start a fish farm.

The stages of filtration – it’s all about balance

There are four key aspects of filtration, all of which are non-negotiable and integral to running a successful system.

Rating recirculating systems for tilapia

The efficacy of any recirculating system must be based on solid evidence and statistics over a full season.

Is farmed fish bad for you?

Sweeping claims about toxins contained in farmed fish, which are supposedly dangerous to human health, are unsubstantiated and false.

Red tape strangles SA aquaculture

Local aquaculture is hampered by misguided policies, over-regulation and government interference – all of which serve to stifle what could otherwise be a highly productive and lucrative industry.

Oxygen and stocking rates

Any viable tilapia grow-out system is dependent on adequate oxygen levels. As stocking rates and fish size increase, so too does demand for oxygen, and it is important to ensure...


Krone Big X 1180 forage harvester.

Meet the world’s most powerful forage harvester

The official launch of the latest Krone Big X forage harvester took place in Germany in September 2018. Joe Spencer reports on this advanced machine.

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