Without a doubt, one of the most tenuous occupations one could ever consider is trying to squeak out a modest living as a walleye fishing guide. Here’s how ace guide Joe Zemnicki catches walleyes during the toughest time of the year — late summer. If they’re 18 to 25 feet deep, I like to troll balsa minnows with weights on the lines to take them down. How to Catch More Walleyes Without Forward-Facing Sonar, According to a Fishing LegendEvery year, we log many fish topping eight pounds. During the fall months, I find most of them at eight to 12 feet deep.