I feed the Hikari sinking wafers also, but how many wafers do you feed two panda corys? They are in with a betta, so there isn't any leftover food as he eats his pellets as soon as they hit the water. I started out feeding each cory a wafer at night, but they don't eat it until it has softened up and easily falls apart, at which time it looked like a lot of food for two little corys. So I have cut back to only one wafer for the two of them. Is that enough food or should I go back to a wafer apiece since they only eat once a day.