Just hauled 20# of Tilapia in a 152 quart ice chest. Used a PowerBubbles 12V DC air pump with a dual output.You can buy both at Academy. The air pump comes with two air stones and tubing.Silicone the hose to the inside of the cooler and put a vent hole in the top. The cooler I bought had several indentions in the top for cup holders. Put vent hole in one of these cup holders and silicone cup holder drain so water will self drain back into the cooler. I got the Tilapia from Boatcycle--nice size 1/2 to 3/4 lb each. Kept them in the cooler about 6 hours with no problem.
