An average fully grown guinea pig can weigh anywhere between 1.5 and 2.5 pounds. If you’re concerned that your Abyssinian may be pushing this weight range, you can weigh him yourself to find out. If your cavy will stand still, place him on your at home scale to read his weight. If he squirms, pick him up and get on the scale while holding him. Remember that weight and subtract it from your weight standing on the scale alone. This will give you your Abyssinian’s weight. You can also have your vet way your cavy when you take him in for a checkup. Your vet can let you know if your pocket pet is overweight or not. If he’s borderline, you may want to change up his diet, add toys or tunnels to his cage to encourage exercise, or cut back on the treats. Always talk with your vet Somerville, MA before adjusting food amounts.