I'm tired of dumping money in the lake at the end of the day. The weather is cooling so I want to buy my minnows for the fall/winter by the pound, and have a place to keep them at the end of the day.

Thinking of using a 50 gal. rubber trash can , 30-60gal aquarium filter and an aerator. Will this work fine? How many minnows can I keep with this set up?