I was fishing a pond near my home a couple of weeks ago for blue gill using a HEN in about 4 feet of water. As I watched a 30" grass carp (they were put in the pond about 6 years ago to keep aquatic vegetation under control) came to the surface, rolled, and tried to take my orange and yellow strike indicator! I was using a 3 wt. with 7X tippet so if he'd taken my fly the fight wouldn't have lasted very long. Maybe I need to tie a hook to one of those strike indicators, and try it for the carp.