[header] How to care for a mongolian gerbil [title] Buy a plexiglass rodent enclosure. [step] Buy a plexiglass tank at your local pet store to house your mongolian gerbil. The enclosure should measure at least 36 square inches (approximately 232 square centimeters) per gerbil that you have. 
The top of the tank should be covered with a wire mesh lid that seals tightly enough to be escape-proof. [substeps] A tank is a more suitable choice than a traditional wire cage because gerbils can squeeze through spaces as small as.