Grass tank kare-sansui landscaping refers to the art of creating a dry landscape or kare-sansui scene in a planted aquarium. This style of landscaping originated in Japan and is characterized by the use of gravel, pebbles, rocks, and sometimes artificial plants or grass to mimic the natural landscape of a Japanese rock garden. It emphasizes simplicity, natural beauty, and the harmony of the elements. Creating a grass tank kare-sansui requires careful selection of materials and a design that reflects these principles.