But rather than shop around for a bigger freezer, Gunther sold his prize catch for around £2,500 once he returned to shore. Gunther, from Magdeburg near Berlin, said afterwards: 'This is the fish I have been fishing for all my life.' He used a 30lb line and a plastic lure to snare the fish. Halibut thrive in cold north Atlantic waters and can reach up to 15 feet in length. The previous record for a halibut was held by anglers Bosse Carlsson and Hans-Olov Nilsson who caught a 464lbs speciman off Norway in July 2009.