I run a 12 volt bubbles aerator in my boat hooked up to my starting battery. It has two hoses and I use 2 - 5 gal. buckets with styrofoam liners and it keeps minnows alive all day for me and my wife I have one bucket in the front and one in the back so we don't have to bother each other getting minnows from one bucket. I have had this one unit for several years now with no problems.
https://grizzlyjig.com/p-250-power-bubbles.aspx