Thanks for all the replies, but these snakes have been in the same tank since they were just babies. My fiance has had them for years, and they've always been together. We've had them in a 55 gallon tank for the last two years, and their as long (if not longer) then the tank is. We're getting the 100 gallon because it's 6ft long, and they'll both have room to stretch out. In the near future when I have the money to upgrade I want to get drift wood or something for them to be able to climb on. We are upgrading the lighting system too. What about putting plants in the tank? Should they just be the fake aquarium ones, or would real ones be better?