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Don't know exactly what kind of bait you are interested in keeping or how long you want to keep it but if it is crappie minnows, keeping them alive for a couple weeks is fairly easy and inexpensive with equipment easily obtained at walmart... I guess buying several pounds of minnows at a time can get involved trying to keep them alive... I trap about all the minnows I use and seldom run out... I would actually prefer buying them if I could find a reliable source but locally it is iffy whether or not I can get them when I want them.