That's great idea, but what about the new "keep your minnow receipt" rule? I wonder if showing a game warden pics of your setup would count.
Refresh my memory medic...I thought the purpose of keeping your receipt was to show where you bought them? Surely, They can still keep the receipt from when they bought them and satisfy this record keeping requirement.
I had a fishing buddy years ago, that put minnows, perch, and goldfish in a small galvanized water trough, probably 200 gallon, with an expanded steel grate for a cover. He kept it on the shady side of his storage building, without an oxygenator...never seemed to lose any, except when he left it uncovered(he had some fishing cats and a local wild coon)...and it seems he used rain water to fill it with. Any rate, this above option is a good idea and saves money on minnows...just find a place that gives good deals on minnows by the pound and you are set...thanks for Sharing your setup!