I'll second that. I'm all the time saving minnows from Sunday throught the week till the next weekend. Right now i'm using a 5 gal bucket with a bubble box on it and I change the water about every three days.
I'm on the hunt for an aquarium though. What's everyone else using to hold minnows?? Any secrets or tips?

I did notice last week that I had some about a week old and they were just wore out. They wouldn't live very long once on the hook. Didn't slay the fish either. May not be worth the effort.