My cage smells after half a day since cleaning. I have two spayed females on Aspen shavings. I spot clean the cage when I get home every afternoon (around 4pm) and by the next morning it already makes my room smell horrible. Piggies are bathed around once a month and the cage is fully cleaned with dialuted vinegar water once a week. We have two boars that have been kept on both fleece and shavings and have never had a problem with them smelling bad. How do I fix this? Would fleece smell worse? Different kind of shavings? Different cage cleaner?