Food of walleye larvae in Oneida Lake during the first 6 weeks of life in 1961–63 consisted mainly of copepods supplemented by cladocera and fish. As walleye larvae grew from 7.0 to 24.0 mm in length they ate larger food organisms. More fish were eaten during 1962 than 1961 or 1963. Of the crustacean food the copepod, Epischura, was more common in 1961 stomachs than in 1962 or 1963. Feeding commenced before complete absorption of the yolk reserves. For the three years, 31% of the sac fry contained food while 91% of the post-yolk sac fry had fed.