i got home tonight and my pond was almost empty the out let on the filter got clogged up with some media that my sister in law made tying to help clering up the water. water over flowed from the filter and went in-between the new liner and the old one the koi were fine in a pocket of water at the bottom and was able to pump it half full with the water under the liner and filled u are 300 gal tank and put that in it. when the water was down i saw something small moving and just thawt it was one of the bullfrog tadpoles but to my surprise it was an inch long black koi so one of the eggs from my may 1st span was good and he actually survived was looking for more but i think he is the only one