Which cage is better for a guinea pig?

all commercial cages are too small and expensive. ur guinea pig should have at least 7.5 sq. feet of space in its cage. more if u have too. i recommend building a c&c cage (cubes and coroplast.) it's easy to maintain and u build it ur self with no limits to your creativity! you can find out how at cavycages.com have a nice day! :)