Andre- I used to fish for Grass Carp on a pond in Princeton...actually got to be pretty good at it. On a good day I'd catch one or two...all 10+ lbs. Also snapped a Sage rod on one, but that's another story. Here are some key tips: You can only catch a carp when it's feeding. Either on the surface ('clooping' is the proper English term...they who invented Carp fishing), or on the bottom (tailing). If they're schooled up, and not moving, forget it. It's a total waste of time. I've had best luck early in the season, using dry flies. Early season (i.e. now through May), they're not too fussy. You want a big bushy dry fly that looks like a leaf (for grass carp, anyway). Sofa Pillow with a green body will do just fine. You'll need a LONG leader, 15' or more, if you can throw it. Carp are very line shy. Look for a solitary carp clooping - if you cast into a group, the problem is that you're bound to spook one, and the one will spook the rest. There's a lot of randomness to the pattern of a carp feeding on the surface...but find one that's feeding regularly, and throw out a cast 20 feet in front of it, in the direction it's headed. If you try anything closer you'll spook it. Then just wait, and hope the carp takes your fly. It's an excruciating 30 seconds or so waiting for the fish to methodically work its way to your fly. Use the time to make sure you've got the drag on your reel set properly, and your line isn't tangled around an guide or anything else. Often he'll give it a miss, or take something right next to it. But there's something incredibly satisfying to see that big mouth close on your dry. If he doesn't take it...wait til he swims past, and try again. If he does take the hook, set it, and get ready for for a long fight. Any fish that size is incredibly strong. Grass carp can be quite annoying, in that they'll let you lead them in, but they freak out when you go to release them, and swim out repeatedly. But it's all great fun on a light rod.