I've heard of a couple reputable mouse keepers who choose not to use water bottles for their mice. Instead, they feed vegetables like greens and others to make up for their need for hydration needs. Would anyone have any idea on what kind of vegetables to feed and how much per day say per a tank of 5 active mice? I am very interested in this, if done properly I could see my mice being possibly even healthier with all of the vitamins/minerals/antioxidants ect... from an actual plant source. If done wrong, ie, too much I could see the health of the mice go downhill.