I have had my american bullfrog "Frogger" for about year and "Frogett" for about 6 months. Frogett eats alot but the other one only eats about a cricket a day. I think it depends on the frog. I cought them both in the wild. However, certain bullfrogs, depending on how long they stay in their tadpole stage, aren't as big as others. I can allready tell that Frogett will be a larger bullfrog than Frogger ever thought about being. I feed both calcium and vitamin coated crickets and keep them in seperate tanks, a 20 and 10 gallon tank set up as half and half, water/land.