I read i thing some were that dry pasta has shattered and cut there mouths so i part cook it first-maybe being a bit of a fuss pot!
I got yards and yards of Lino for £10 from the off cut bit in my local carpet shop, its great for covering the bars of the cage and its come in handy for creating a peramiter fence sort of thing in the "rat area" (they can get out if they want but they get told NO if they try and they seem to be ok with that). I think it will be an easy floor to clean with hot soapy water, ive used a torn up flanlet sheet for beding, furnature saver, hammocks, hide outs...