ok, I feel like I'm failing school here...help me out ! I don't understand a couple points here. First carrying capacity : isn't the general rule that you can only have x number of fish ? If you had 1/4 catfish, doesn't that only leave 3/4 of your predators bass ? Wouldn't you then have to cull 25% less bass over time ? Second, displacement : as the catfish grow, wouldn't that cause excess predators, in turn putting pressure on smaller fish. (we've all caught catfish on lures one time or another...right ?) Since Bass only spawn once a year, it seems logical that excess predators in the 5 pound range would be beneficial for a season or two. in conclusion, is there no way to naturally balance out a bass pond without culling ?