Just got my first boat its a 15' aluminum hull with a 1957 johnson sea horse 35 hp and i got a mercury 5 hp for trolling. I got a cannon easi troll down rigger that was givin to me it didn't have a base lol so pretty much a beginner at fishing from a boat my question is is it mandatory to have a fish finder? Also me and my friend have been trying to catch big lakers and carp lol pretty much just want to catch big fish! If i do need a fish finder does anyone have a old one laying around i could buy as well as a base for the cannon easi troll. Also any tips for using a down rigger are appreciated
Thanks and happy to be a part of this fourm!