In my smallest pond I had about 10 Koi and only 3 are left. I'm sick. Now I guess it has to be netted forever since those bastards never forget. Very disheartening. If that ever happened in my big pond where some of the fish are 10 years old I'd give up. It's a sheer 4 foot drop with steep sides so I pray they will be safe. I have a hard time killing a bug but I could strangle that thing with my bare hands.