drawing of a siamese fighting fishUnlike a great many tropical fish households Cyprinidae, Gyrinochelidae, Loricariidae, etc. who will take both vegetative and animal based foods, the bettas are powerfully carnivorous, their native fare being barbecue, crustaceans, insect larvae, and minuscule worms. The gold standard captive diet, hence, should cater to the high protein needs of the betta. Avoid feeding commonplace fish flakes, spirulina, or other vegetative foods in favor of newly hatched brine shrimp, tubifex worms, white worms, mosquito larvae, daphina, and even very tiny bits of raw liver. Processed flakes, capsules, and pellets which are high in protein also will suffice. Author Cole Carsonvia Articlesbase.