We feed our bettas 2 or 3 Hikari Betta Bio Gold pellets twice a day. Some people say that much once a day is enough. I know that they would eat the entire pack if you dumped it in the tank. I also give them some brine shrimp, bloodworms or daphnia about every other day. If they are hid, all I have to do is touch the water and they come to the top. They know that means it's chow time. Two of them will eat them off my finger but the 3rd one won't yet. Since they eat the pellets as soon as they hit the water, I don't worry about overfeeding and having food laying around on the bottom decomposing.