Hmmmmmmmm................ this would depend on the hearts, if the hearts are half full , mayb about 4 snacks or 2 meals. if u need more info i'm here h34r:
All hearts are full. But when I tried to recieve pres from friend that when I got message - full? I have about 20 snacks and 20 treats - sorry can't tell at mo as tam asleep.
h34r: 
