I am trying to get into carp, specifically fly-fishing for them on Joe Pool Lake just south of Dallas. I have seen a lot of them rolling on the surface, but I have never targeted them before. My general plan is to just cast a small crayfish or nymph around the grass beds, or chum with corn and cast a small fly that looks like a corn kernel. Does anyone have any other good info I might be able to use, such as active hours, best water temps, seasonal patterns, specific feeding habits, depth ranges, spawning habits, structure that might hold them/how to locate them, etc? Any help is appreciated, thanks.