Bigger is better!!!! For the health and well-being of your guinea pigs, beyond the minimums, provide as large living area as you possibly can Many of the ready made cages sold in petstores are NOT suitable for guinea pigs-despite the fact they are advertised as being so. Most of them are too small and some even have a wire grid floors-which should never be used to house guinea pigs. Exercise and exploration space are very important for their long term health and happiness. They need room to d...