Here are even more of our favorite terrariums. A display like this is a great way to consolidate a lot of little indoor cactus pots into a larger piece that really stands out. Succulents need a lot of light to survive, so make sure to pick a spot in your home that provides ample sunlight throughout the day. The best thing about terrariums is you can almost use any container as long as you are aware of the light and air that your plants need.