Even on nights when walleye are more in tune with smaller minnows, a group of anglers should still have a few suckers down for their incredible fish-attracting ability. Place them on lines in the centre of your ice-hole spread. This allows you to catch walleye on the outside edge as they move towards the suckers. While the continuous vibration of a sucker minnow is good, a free-swimming sucker is not. You have to anchor them down in the hole, to give walleye a reasonable chance of grabbing them.
Pockets can be fair secondary locations.
Sandgrass adjacent to weedbeds can also produce. Regardless of the type of minnow you use, hook it lightly under the dorsal fin when fished off a straight hook and sinker on a set-line, and nose or tail when jigged. Set lines higher off bottom than you would when day fishing. Walleye tend to feed upward, rather than down, at night. Light plays a critical role in walleye fishing.