"Hey Rod.....what do you know about fish farming?"
"Well I know that if you have one of those backyard swimming pools, (at least three feet high) you could raise enough fish to see you through the winter and probably the next summer. The water needs to stay cool with lots of oxygen. If the water gets to be in the 80'sF, trout will die.....but catfish will survive. Trout like the temperature between 54 and 56 degrees Fahrenheit (12 to 13 degrees Celsius). Any small pool pump will provide oxygen, especially if you can make it like a fountain, plus it will keep the water moving. The pH level should be kept between 6.5 & 7. The other thing you should have is a filter system, this can be something as simple as a 20 gal tank with some gravel and sand, rigged up so that it can run back into your pool. You can buy fingerlings from a commercial producer ranging in size from 2 to 6 inches long. The bigger the fingerlings are, the faster they will grow to butcher weight."
