Grass carp are illegal in WI. I would have to sneak them in. (HAHA). I am not after completely getting rid of the Sago just controlling it if that is possible. I would like to keep an area clear for the kids to swim and instead of a 15'-20' area around the pond maybe 5' from shore to help with erosion and give smaller fish a place to hide. Earlier this year I had a FA problem that seems to come every year. It is hard to treat because it seems the FA attaches itself to the Sago and forms a very ugly mat all the way around the pond. The FA died back with some heavy rains we had, so I took that chance to cut and remove the Sago. Now my thought is to treat for FA before that gets fired up and try to control some of the Sago when everything is small so when it dies I won't have to rake the dead stuff out. I had the water tested at one point a couple of years ago and everything looked good so I don't know why I have the big FA problem every year.