I don't know about your area, but around here, there are 10, 20, 30, 40, 55, 75 gallon aquariums for sale all the time for pennies on the dollar with all the pumps and filters,etc. People get tired of keeping them clean and nice looking. We have a county sale page on fb and there are 4 or 5 aguariums for sale almost all of the time. As the others have said, keeping it very cold without freezing is key. They can last for weeks if the water is cold and kept clean.