This is our 2nd ponds first spring, fish survived the winter, everything looks good! Hurray! I installed this pond last fall not only to add something next to our small deck but to transplant all our goldfish out of our koi pond. I was only able to keep 5 being how big they were, rest addopted out. They just mutiply like flies and were just over powering the kois pond. Which is a 14x9 from 1'1/2" to 3' deep.