According to a very reliable source (who's also a respected iFish member), there are good-sized crappie in Hagg Lake. I may incur his wrath for even mentioning it. Like most folks, I've been unable to locate these tasty critters in that body of water.
The only catfish I've taken (or have seen caught) have been smallish bullheads, but it would seem logical that is there are small ones there's gotta be some big ones producing them.
~MT
The Guide's Forecast