I was wondering if anybody has had success breeding guppies or platys or something easy to breed to feed larger fish. I have a few peacock bass and various other predators and I was just wondering
Yep, a lot of people do. It takes a lot and a long time to set up an established colony to be constantly have fish available. I've attempted with guppys, but just feeding them pellets and frozen was a lot easier and had better results.