Update from spraying roundup with their included surfactant. I fully admit i thought maybe the rodeo route was a way to mark the glysophate up for profit. Yesterday I sprayed cattails with a 1.6 percent roundup mix around a portion of my 2 acre pond at 3pm. Today I went back at 5pm and found 4 dead gills and 2 dead crappie. 5 of the 6 appeared to actually be dead for awhile and 1 10in crappie had not been dead very long. I admit ignorance and assume roundup was the reason. Will now buy rodeo and use a non ionic surfactant. Posting for others heads up. Hope I don�t find many more tomorrow.