A number of Rat Cages can be found in the market. All of them have their own advantages as well as disadvantages. You can buy one which suits your preferences the best. For instance the aquarium cages are liked by those who do not want their room to be messed up but these are not ventilated. Plastic cages are a cheaper option and can be found easily but need to be frequently changed. On the other hand wire mess cages are the most ventilated and toys can be hung in them for the pet but a lot of mess is created around the cage.