Launched at port delhousie trolled around for a bit wasnt marking anything. Decided to power up the lake to niagra bar/fort erie mouth. Marking tons of fish between 25-55feet. Fish were active on the move checking out cannon balls. We used short leads and long, all types of lures and colours. No such luck though, any idea what kind of fish these were, should we try herring next time, any help here would be appreciated