[header] How to take care of mice [title] Get the right aquarium size. [step] An aquarium can be a good choice to keep mice. If you opt for an aquarium, make sure it's at least 10 gallons (about 38 liters) and has a mesh lid to prevent a mouse from escaping. 
If you have one to three mice, a bigger aquarium is necessary. [substeps] Four to five mice need at least a 15 gallon (about 58 liters) aquarium.