between 14-18 dozen depending on the size..i have a minnow vatt here at home and i buy them 5lbs at a time...using 6 poles total..me and the wife go through 1/2 lb per trip..@ 6 poles double rigged you use a dozen each time you bait up..setting up a tank is easy..been doin it for 10 years..few things too remember...lots of air..NEVER feed them..life span of about 4 weeks(from the time they are pulled from stock pond..so get them from source if you can) use them ALL before you restock..and clean the tank between stockings..a few tips for your vatt...personal vatts are better 20-30 gal max.. water garden pumps work great to circulate water to cool it..fish tank bubblers(biggest you can get) and bubble stones or wands are best source of air..bubbler and pump are cheaper on ebay..keep it in the shade ..and make a top out of screen door screen so it will "breath"..i give about $7 per lb for med minnows...alot cheaper than $1 per dozen..and i never have to stop on the way..thats worth it all...have fun..and good luck
Chuck Cissell
Parker Marine
Paris,tennessee