- Basic indoor cavy cages have a solid plastic bottom with a wire top that clips on. This provides good ventilation and is easy to clean.
- These are usually specially made cages made of wire and solid flooring. No wire flooring should be use because, according to "Guinea Pig: Your Happy, Healthy Pet," guinea pig feet and legs easily slip through the mesh and break.
- Aquariums that are at least ten gallons per cavy should only be used as temporary housing. They do not provide adequate ventilation and promote respiratory illnesses in guinea pigs.
- Hutches made for rabbits should be used only indoors. According to the website Guinea Lynx, hutches kept outside often topple over.
- Guinea pig cages need to be at least two feet by three feet large for housing one guinea pig. Add three more square feet for each additional guinea pig.






