In the video, a person is seen cleaning the glass of a terrarium. The terrarium is filled with various objects, including a rock, a plant with purple flowers, and a piece of wood. The person uses a white cloth to wipe the glass, starting from the bottom and moving upwards. The terrarium appears to be well-maintained and clean. The person's movements are steady and methodical, ensuring that every part of the glass is cleaned. The purple flowers add a pop of color to the otherwise neutral-toned terrarium. The rock and wood provide a naturalistic look to the enclosure. Overall, the video showcases the care and attention given to maintaining a healthy and aesthetically pleasing terrarium environment.