HI all. Was hoping you can help me. I had 2 large koi & 2 goldfish. The other day I came home from lunch and noticed that the wind had blew all my water out of the pond do to my balloon fountain. I checked on every there and the fountain was still running and there was alot of water left, but I had to fill it up. Because it was my lunch hour I quickly filled it up and went back to work. The next day all my fish were dead. Why did this happen? I've done this before in previous years and the fish were always ok. Any help would be fabulous! Thank You!