Campbell Mickel, 51, bought the rare fish from traders in Barcelona on June 10 - and said he was so excited he couldn't sleep until it arrived.

It took four men to haul the huge tuna onto the window display at the fish market.

Campbell said he would not normally advocate eating bluefin tuna but said the 7ft fish was farmed rather than caught in the wild.

It was captured at a young age and farmed in a pen in the Mediterranean until it matured before being sold.