Did you know aquariums help reduce up to 40% of one's stress just by looking at it for a few minutes?
Adding an aquarium/terrarium into a dorm not only adds a beautiful piece of nature into the room, but also creates a focal point in the room, creating something that one may look at when arriving.
Furthermore, multiple studies have been done, by seeing the flow of the water, the plants, and/or the fish, it allows people to have less stress overall after focusing on it for a few minutes.