Thanks ewest I have the Nov/Dec 05 issue and found the article. Thanks. For folks that have a hatchery pond do you think you could just siphon the water from small pond to big and move the fish? I have a small 3" siphon on my 3 acre pond and it moves a lot of water. I dont use it for a "spillway"(have 2 earth spillways) just use siphon for water level control when I want to do something in the pond.