How deep does the pond have to be?
Hardy fish, such as Koi, will survive through winter in as high as Zone 5 (example: Chicago) in as little as 18 inches of water. All of Aquascape’s Pro-Pond kits are designed to be built at a depth of 24 inches. You can go deeper if you want, but keep in mind a few key factors in the design. A deeper pond will require more digging, rock, and a bigger liner. A bigger BioFalls, skimmer, and pump may also be required depending on how deep you go and how much water is held in the pond.
