I just recently discovered this site after researching about cavy's. I have two male cavy's and I want to build them a bigger cage. I bought one from the pet store and feel it is too small for them. I have a question about a alternative bottom for the cage because I can't seem to find Coroplast anywhere I was thinking about using Linoleum. Is Linoleum base good? I would really appreciate it if someone can respond to my question