I have two female guinea pigs who live in separate C&C cages because they do not get along. They are given the same amount of food a day (1/4 cup timothy pellets, fresh timothy hay, and 1-2 cups of vegetables/fruits). I am confused because their weights are so different. My one girl is 1.4 pounds while the other one is 2.8 pounds. The one that is lighter always finishes all her food while the heavier one sometimes does not! I am so puzzled. They are both rescues so I don't know anything about their parents. They are different breeds: the lighter one is an Bi-Color Crested and the heavier one is an Abyssinian. I am wondering if anyone can shed some light on this. Thanks!