Carp might be the obvious choice if big weights are the target, but top anglers at one popular commercial coarse fishery and match water have been successfully targeting big ide instead.
Lancashire's Highfield Fisheries is home to a variety of species but it's the silverfish that have been dominating recent events, with nets of over 70lb being taken on a weekly basis.
In an effort to find out more, Angling Times met up with local expert Chris Martland for a day's bagging on the prolific Oak Lake.
Rather than ram his bait tray with countless offerings, Chris had placed just one large tub on it and filled it to the brim with casters - but these weren't ordinary casters bought straight from the shop. Chris had a trick up his sleeve.
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