let me specify.......I never feed my Jags store bought feeders. I feed 1" convicts that magically appear in 2 of my tanks.
What I mean by live is natural foods like earthworms,tadpoles,baby frogs,crickets,beetles,ants and most anything they could eat live in the wild, I also put in "sacrificial plants" for them to destroy. This method of feeding...... steps up growth rates off the charts. They display their fitness and predatory instincts when fed this way.
DISCLAIMER>>>>>LOL: When feeding live foods and plants be sure and quarantine the swimmers and aquatic plants, and do your research on the insects and frogs you are collecting to feed your fish.
Once you have done your research and discovered what your fish eat in the wild. You can find native live foods that are similar enough to substitute. JUST BE CAREFUL!!!