Koi(river carp with color), are bottom rooters, aquatic pigs, and water roilers aeration will tend to accentuate the turbidity created by the bottom feeding koi. Koi and clean gin clear, water conditions do not partner well. Clear koi ponds need tremendous amounts of mechanical filtration to keep the water clear. If you are not regularly feeding the fish you will likely not see a big fish very often. If you want one or two large fish choose a white amur aka grass carp if legal in AZ. Another option to get a few eventually big fish is to stock fewer trout per acre such as 6-10. Fewer fish have more resulting food thus they always have food to excess and get big and fat.
Last edited by Bill Cody; 07/28/14 07:48 AM.
