Does a Tarantula need undistilled water to drink from? I know many people including myself use distilled water in their misting bottles because it does not leave mineral deposits on the glass of tanks, but is it any less beneficial for a T to drink from this water opposed to your standard filtered water? I know that distilled water is not as beneficial to humans and most other animals because it lacks the minerals that regular water has. Does this apply to T's as well? I just got my first arboreal T's and wanted to know if it was important to spray the tank with the undistilled water so when it drinks off of leaves it's getting the proper nutrition.