With wild fish stocks reaching their limit, Matthew sets out to find how else we can continue to supply seafood from an exhausted ocean. Is fish farming the answer? If so what fish should we farm and how? Matthew has been pressing for a change in the laws on seafood labelling so we all know what species we are eating and where it is from. But with wild fish stocks at their limit, we need to find more ways of providing sustainable seafood to a growing population. Fish farming or aquaculture could be the answer, but it’s crucial we farm the right species – so what are they?