The domestic mouse has been kept as a pet for centuries, and they make great first pets.If well cared for, mice typically live up to two years.Mice are curious, charming pets, and will be active at various times throughout the day. They love to run and ride a pet wheel. They also run through tubes and climb about. Mice are also very social with members of their own kind. Females will do well in a group, and males will, if introduced at a young age. If males are introduced when adults, they will fight. Do not house males and females together, since mice can breed quickly and often, and the litters can have up to 15 in them. A ten-gallon aquarium with a wire cover is a large enough for a couple of mice. There should be several inches of bedding, almost any kind of bedding is safe to use except cedar. Add a small wheel to run in and plenty of things to chew and climb on. Cardboard boxes and paper tubes are perfect toys.