The enormous advances in agricultural machinery and technology achieved during the so-called "Green Revolution" halfway through the 20th century were reflected in exponentially increased yields. A new movement is now gathering momentum. With our oceans exhausted by centuries of overexploitation, modern aquaculture is finally shaping up and tackling the problem posed by unsustainable demand on fish resources. The crucial question is whether it can manage the feat of both alleviating the pressure and supplying a high quality product. Given the varied coastline and waters that surround the Iberian Peninsula, Spanish fish farms have a valuable head start in the race to capitalize on the opportunity that aquaculture represents. Whereas other countries have specialized in one single species, Spain farms ten or more, each of which have been tried out on its own, highly-discerning, domestic market. Even so, the range is regarded as not yet complete and various companies, universities and research institutions strive daily to extend this varied and appetizing repertoire. It's just a matter of time until they do.