This moss ball is the closest thing I have to a pet in my house. Luckily, this pet requires minimal care. This moss ball only needs a water change weekly, and to have the old water gently squeezed from it before being placed in its clean water. It doesn’t do well with too much sunlight, and should be placed in an area with a bit of indirect sunlight. The ball itself is only about 1 inch in size, but appears much bigger through the glass of its bowl.