Hello, I am deciding between a golden wonder killifish or a rainbow cichlid for my tank, so far I might get a golden wonder due to the personality, color, and the fun of feeding it, however, I want to know what the best foods are to feed these fish, right now I have tetra mix flakes and blood worm cubes, I might feed it that but what else? Can I feed it small live fish as a treat? Can I feed crickets / shrimps and other inverts? I really want this fish looking and acting its best so any food ideas will be nice.