I have 2,000 Bettas. (approximately) I've tried several different brands including Tetramin Betta pellets, Wardley's; Betta Pro and Hikari mini bites for juveniles. Most of the regular Betta pellets vary in size from one container to the next and I've had to rescue a few and lost a few younger Bettas from choking to death on them. Then a friend told me about Ken's fish food. I now use his Super Color 1.0 mm Betta pellets exlusively. Not only can I feed it to younger Bettas without worrying about them choking on them but it also lets me go longer between water changes without fouling their water. I highly recommend it as well as the Tropical Flake food I feed my Bettas and Cichlid pellets I feed my Quetzal Cichlids.