Has anyone ever targeted grass carp (also known as white amur) with any success? I'm down at my parents' in Hilton Head again, and I've been going crazy trying to get these things with no success. There's at least 8 of them in the little pond/lagoon in their backyard. There isn't much info online about fishing for these things, but from what I gather, they are apparently vegetarian, but I've read about people catching them on grasshoppers, woolly buggers, and other "standard" flies. Yesterday, I tried all those, some typical carp patters, along with some "plant" flies. Each one was ignored, despite having some (not to brag) perfectly located presentations that would've made a bonefish go nuts. I've literally tried every presentation... leading them by 12" and leading them by 12 feet, but nothing. I wouldn't be going so crazy if some of these things weren't pushing 15 lbs. Any suggestions, anecdotes, or advice would be appreciated.
On the plus side, I pulled this nice 18" bass out of the lagoon.
Jeff