im selling 9 piranha, all around 7-8". they will be in this container for transport for 4 or 5 hours. i was thinking some sort of rubermaid or similar would be best. but i need to make sure it will hold the water weight and support it. does anyone have any suggestion on the cheapest and best one to get, and where i can get it locally? i was thinking of one about 3' by 2' filled with 10 - 20 gallons of water. thanks a lot.