Can anybody tell me if frozen rats loose any nutritional value after being frozen for so long? I recently bought some of that dry moss that you soak in water. Does anybody know how long you can leave it in the habitat before it molds? I only use 1/4 of the moss at a time because it swells up so much. My girl absolutely LOVES it and I want to keep using it. I've been changing it once a week jus to be safe. Can anybody provide me with some info on this stuff. Thanks to all.