Koi are happiest in water temperatures between 59 and 78 degrees. Of course they survive in our ponds in the winter in much colder water and they should be able
Falling Water Designs is an award-winning Seattle, Washington-based landscape design and pond installation company serving the following areas: Seattle, Bothell, Bellevue, Sammamish, Redmond, Kirkland, Shoreline, Lake Forest Park, Clyde Hill, Medina, Mercer Island, and more.