I have a baby Largemouth that I've had since it was 4'' and now is 12''. I feed it goldfish, nightcrawlers, crawdads, baby bluegills I catch, dead anchovies, and stripes of rainbow trout. The bass will strike the food out of your hand very hard. Sometimes bites my fingers too. I used to have about 5 bass years ago and I put them with one bluegill. The bluegill would eat a piece of cooked turkey or ham that I put in. Little by the little the bass would too. I know it's weird but they ate it. I did that many other times. The bass I have now won't eat that stuff because it's too big now and used to other food but you can train it to eat whatever you want at a young age, they will get hungery.
Anthony