I built one for my pond. I used 1" pvc to build a rectangle frame roughly 3x5' and 3' deep. I then used the plastic small squared fence from TSC to wrap it attaching with zip ties. Then pool noodles around the top to keep it floating. I use mine more for introducing fish to pond / feed training or treating fish in early spring that might have a bacterial infection / red sores when caught. It would probably need a top on it if you have turtles in pond as they will crawl over top for an easy snack. It's also great at holding the biggest catches of the day for a nice picture before releasing.