Well, it's important to keep your Christmas tree hydrated, but adding too many chemicals or preservatives can be harmful to the tree and the environment. Instead, try adding some fresh fruit, like apples or oranges, to the water. This will help keep the tree looking fresh and healthy while also adding a sweet scent to the room. You can also add a few drops of essential oils, like eucalyptus or lavender, to the water to help keep your tree smelling good.