No, I remember now. When you have one heart left, you wait and it beeps. (This does not work for the Tama-Go.) Then, you feed it. Time the distance from the last time it beeped to the next. Multiply by two, and I think that is how often it poops. (It poops every other time it loses a heart, and I think for babies that is every 15 minutes that they poop.