Hikari Pellets, Betta Bites Pellets, & Tadpole pellets (Pitaya gets Hikari Micropellets because her mouth is too small for the others). Then, usually daily or every other day, frozen blood worms and brine shrimp. On perhaps a weekly basis, live foods like neo-natal crickets (smaller than pinheads from my own breeding stock) and fruit flies are fed. And, on very rare occasions as a treat, daphnia and flakes are given, but only in small amounts and pre-soaked because of the problems they can cause.
I like to feed a wide variety of foods. If there is anything I learned getting my animal nutrition certification, it is that variety truly is the spice of life, and is absolutely necesarry to maintain the good health of an animal.