Assorted size moss balls flexible pairing options, allowing hobbyists to customize unique underwater landscapes easily. Marimo moss balls live come in 4 distinct sizes (0.79-1.30 inch after soaking), creating layered, dynamic visual appeal for any aquarium setup. Decorative moss balls feature a soft, plush green spherical appearance that enhances the natural beauty of fish tanks or eco-bottles. Aquarium moss requires no soil planting and thrives in most small aquatic environments, making it ideal for low-effort aquascaping. Live moss for aquarium maintains its vibrant green hue with minimal care, as long as water is kept clean and suitable light is provided.