Allentown's (Allentown, NJ) Bio-Containment Unit (BCU) comes in both rat and mouse varieties. The mouse version comes in two lines, the BCU-1000 (42 cages, single-sided) and the BCU-2000 (98 cages ...

Swap out toys, rearrange their cage setup, or introduce new games to maintain their interest. Keeping your pet rat ...