Pellets is the hardest food for fish to be trained for. It also very good and fast growing food for fish. If you can get your fish, or ALL fish get to eat pellets that is good for the fish. Also when you sell your fish, most buyer will want fish that is pellets trained.
However, you want to mixed their diet also. In term of bass their will eat krill, worm, shrimp and others. Just simply stay out from feeders.