Why do cisco and smelt lakes grow the biggest walleye?

Because they solve the big fish's energy problem. A giant walleye needs large, fatty, abundant prey, and pelagic coolwater forage — cisco (tullibee) and rainbow smelt — delivers exactly that: oily flesh, big body sizes, and dense schools holding in the cool, oxygenated band where a big walleye already wants to live in summer. On these lakes the largest fish go substantially pelagic, shadowing bait over open basins instead of grinding structure, and they get two bonus feeding festivals: smelt runs in spring and the November cisco spawn, when the lake's biggest predators follow spawning cisco onto shallow rock within casting reach. If your goal is a true trophy, forage base belongs above lake fame on your checklist — a modest lake with cisco routinely beats a famous one without.

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