New Zealand's agriculture industry has the potential to become a $3 billion earner. 

Land-based Kingfish farm in Northland is contributing to the prospect, as the only facility of its type in the country.

The farm has already received international interest and is projected to be bigger than salmon in less than 10 years. 

NIWA Aquaculture Chief Scientist Andrew Forsyth talks to Mike Hosking. 

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