Hi i brought two female rats yesterday, one of them is a dumbo rat we've called Raisen and the other called Peanut. i've just noticed today that the dumbo has a really small bit of blood around her nose and has little sneezing fits and sometimes you can hear her breating heavy. i have heard of a cold that rats get when they are babies that can be fatal if left untreated. is this true? and what are the symptoms of it? these are really small. we was told they are 8 weeks but i think they are younger. definately weened off their mother though and little trouble makers!! I also have an older female rat called Bubble and she lost her sister (Squeak) on friday and she seems really lost. what can i do to help her? Thanks!!!